diff --git a/packages/google-cloud-dialogflow/google/cloud/dialogflow/gapic_version.py b/packages/google-cloud-dialogflow/google/cloud/dialogflow/gapic_version.py
index c82b1e137507..558c8aab67c5 100644
--- a/packages/google-cloud-dialogflow/google/cloud/dialogflow/gapic_version.py
+++ b/packages/google-cloud-dialogflow/google/cloud/dialogflow/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "2.32.0"  # {x-release-please-version}
+__version__ = "0.0.0"  # {x-release-please-version}
diff --git a/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/gapic_version.py b/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/gapic_version.py
index c82b1e137507..558c8aab67c5 100644
--- a/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/gapic_version.py
+++ b/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "2.32.0"  # {x-release-please-version}
+__version__ = "0.0.0"  # {x-release-please-version}
diff --git a/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/services/participants/async_client.py b/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/services/participants/async_client.py
index 43f7da028296..d1cfd3548f4a 100644
--- a/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/services/participants/async_client.py
+++ b/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/services/participants/async_client.py
@@ -913,7 +913,7 @@ async def sample_streaming_analyze_content():
 
                 # Initialize request argument(s)
                 audio_config = dialogflow_v2.InputAudioConfig()
-                audio_config.audio_encoding = "AUDIO_ENCODING_SPEEX_WITH_HEADER_BYTE"
+                audio_config.audio_encoding = "AUDIO_ENCODING_ALAW"
                 audio_config.sample_rate_hertz = 1817
                 audio_config.language_code = "language_code_value"
 
diff --git a/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/services/participants/client.py b/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/services/participants/client.py
index dcd520b9ac4e..57bcaccfbc20 100644
--- a/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/services/participants/client.py
+++ b/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/services/participants/client.py
@@ -1409,7 +1409,7 @@ def sample_streaming_analyze_content():
 
                 # Initialize request argument(s)
                 audio_config = dialogflow_v2.InputAudioConfig()
-                audio_config.audio_encoding = "AUDIO_ENCODING_SPEEX_WITH_HEADER_BYTE"
+                audio_config.audio_encoding = "AUDIO_ENCODING_ALAW"
                 audio_config.sample_rate_hertz = 1817
                 audio_config.language_code = "language_code_value"
 
diff --git a/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/services/sessions/async_client.py b/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/services/sessions/async_client.py
index fd60fadf2543..6b70ea5b5d22 100644
--- a/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/services/sessions/async_client.py
+++ b/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/services/sessions/async_client.py
@@ -309,7 +309,7 @@ async def sample_detect_intent():
 
                 # Initialize request argument(s)
                 query_input = dialogflow_v2.QueryInput()
-                query_input.audio_config.audio_encoding = "AUDIO_ENCODING_SPEEX_WITH_HEADER_BYTE"
+                query_input.audio_config.audio_encoding = "AUDIO_ENCODING_ALAW"
                 query_input.audio_config.sample_rate_hertz = 1817
                 query_input.audio_config.language_code = "language_code_value"
 
@@ -472,7 +472,7 @@ async def sample_streaming_detect_intent():
 
                 # Initialize request argument(s)
                 query_input = dialogflow_v2.QueryInput()
-                query_input.audio_config.audio_encoding = "AUDIO_ENCODING_SPEEX_WITH_HEADER_BYTE"
+                query_input.audio_config.audio_encoding = "AUDIO_ENCODING_ALAW"
                 query_input.audio_config.sample_rate_hertz = 1817
                 query_input.audio_config.language_code = "language_code_value"
 
diff --git a/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/services/sessions/client.py b/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/services/sessions/client.py
index ad4dec9d8b41..37a879d61bd5 100644
--- a/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/services/sessions/client.py
+++ b/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/services/sessions/client.py
@@ -784,7 +784,7 @@ def sample_detect_intent():
 
                 # Initialize request argument(s)
                 query_input = dialogflow_v2.QueryInput()
-                query_input.audio_config.audio_encoding = "AUDIO_ENCODING_SPEEX_WITH_HEADER_BYTE"
+                query_input.audio_config.audio_encoding = "AUDIO_ENCODING_ALAW"
                 query_input.audio_config.sample_rate_hertz = 1817
                 query_input.audio_config.language_code = "language_code_value"
 
@@ -944,7 +944,7 @@ def sample_streaming_detect_intent():
 
                 # Initialize request argument(s)
                 query_input = dialogflow_v2.QueryInput()
-                query_input.audio_config.audio_encoding = "AUDIO_ENCODING_SPEEX_WITH_HEADER_BYTE"
+                query_input.audio_config.audio_encoding = "AUDIO_ENCODING_ALAW"
                 query_input.audio_config.sample_rate_hertz = 1817
                 query_input.audio_config.language_code = "language_code_value"
 
diff --git a/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/types/audio_config.py b/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/types/audio_config.py
index 200f60a0c406..2c2c2307a292 100644
--- a/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/types/audio_config.py
+++ b/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/types/audio_config.py
@@ -150,6 +150,9 @@ class AudioEncoding(proto.Enum):
             5574. In other words, each RTP header is replaced with a
             single byte containing the block length. Only Speex wideband
             is supported. ``sample_rate_hertz`` must be 16000.
+        AUDIO_ENCODING_ALAW (8):
+            8-bit samples that compand 13-bit audio
+            samples using G.711 PCMU/a-law.
     """
     AUDIO_ENCODING_UNSPECIFIED = 0
     AUDIO_ENCODING_LINEAR_16 = 1
@@ -159,6 +162,7 @@ class AudioEncoding(proto.Enum):
     AUDIO_ENCODING_AMR_WB = 5
     AUDIO_ENCODING_OGG_OPUS = 6
     AUDIO_ENCODING_SPEEX_WITH_HEADER_BYTE = 7
+    AUDIO_ENCODING_ALAW = 8
 
 
 class SpeechModelVariant(proto.Enum):
@@ -258,6 +262,9 @@ class OutputAudioEncoding(proto.Enum):
         OUTPUT_AUDIO_ENCODING_MULAW (5):
             8-bit samples that compand 14-bit audio
             samples using G.711 PCMU/mu-law.
+        OUTPUT_AUDIO_ENCODING_ALAW (6):
+            8-bit samples that compand 13-bit audio
+            samples using G.711 PCMU/a-law.
     """
     OUTPUT_AUDIO_ENCODING_UNSPECIFIED = 0
     OUTPUT_AUDIO_ENCODING_LINEAR_16 = 1
@@ -265,6 +272,7 @@ class OutputAudioEncoding(proto.Enum):
     OUTPUT_AUDIO_ENCODING_MP3_64_KBPS = 4
     OUTPUT_AUDIO_ENCODING_OGG_OPUS = 3
     OUTPUT_AUDIO_ENCODING_MULAW = 5
+    OUTPUT_AUDIO_ENCODING_ALAW = 6
 
 
 class SpeechContext(proto.Message):
diff --git a/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/types/conversation_dataset.py b/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/types/conversation_dataset.py
index 788094e54596..19ba30433068 100644
--- a/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/types/conversation_dataset.py
+++ b/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2/types/conversation_dataset.py
@@ -91,6 +91,9 @@ class ConversationDataset(proto.Message):
     ImportConversationData on a dataset that already has data is not
     allowed).
 
+
+    .. _oneof: https://proto-plus-python.readthedocs.io/en/stable/fields.html#oneofs-mutually-exclusive-fields
+
     Attributes:
         name (str):
             Output only. ConversationDataset resource name. Format:
@@ -112,6 +115,17 @@ class ConversationDataset(proto.Message):
         conversation_count (int):
             Output only. The number of conversations this
             conversation dataset contains.
+        satisfies_pzi (bool):
+            Output only. A read only boolean field
+            reflecting Zone Isolation status of the dataset.
+
+            This field is a member of `oneof`_ ``_satisfies_pzi``.
+        satisfies_pzs (bool):
+            Output only. A read only boolean field
+            reflecting Zone Separation status of the
+            dataset.
+
+            This field is a member of `oneof`_ ``_satisfies_pzs``.
     """
 
     name: str = proto.Field(
@@ -145,6 +159,16 @@ class ConversationDataset(proto.Message):
         proto.INT64,
         number=7,
     )
+    satisfies_pzi: bool = proto.Field(
+        proto.BOOL,
+        number=8,
+        optional=True,
+    )
+    satisfies_pzs: bool = proto.Field(
+        proto.BOOL,
+        number=9,
+        optional=True,
+    )
 
 
 class CreateConversationDatasetRequest(proto.Message):
diff --git a/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2beta1/gapic_version.py b/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2beta1/gapic_version.py
index c82b1e137507..558c8aab67c5 100644
--- a/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2beta1/gapic_version.py
+++ b/packages/google-cloud-dialogflow/google/cloud/dialogflow_v2beta1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "2.32.0"  # {x-release-please-version}
+__version__ = "0.0.0"  # {x-release-please-version}
diff --git a/packages/google-cloud-dialogflow/samples/generated_samples/dialogflow_v2_generated_participants_streaming_analyze_content_async.py b/packages/google-cloud-dialogflow/samples/generated_samples/dialogflow_v2_generated_participants_streaming_analyze_content_async.py
index 014ecaa28d7c..17db60fde096 100644
--- a/packages/google-cloud-dialogflow/samples/generated_samples/dialogflow_v2_generated_participants_streaming_analyze_content_async.py
+++ b/packages/google-cloud-dialogflow/samples/generated_samples/dialogflow_v2_generated_participants_streaming_analyze_content_async.py
@@ -40,7 +40,7 @@ async def sample_streaming_analyze_content():
 
     # Initialize request argument(s)
     audio_config = dialogflow_v2.InputAudioConfig()
-    audio_config.audio_encoding = "AUDIO_ENCODING_SPEEX_WITH_HEADER_BYTE"
+    audio_config.audio_encoding = "AUDIO_ENCODING_ALAW"
     audio_config.sample_rate_hertz = 1817
     audio_config.language_code = "language_code_value"
 
diff --git a/packages/google-cloud-dialogflow/samples/generated_samples/dialogflow_v2_generated_participants_streaming_analyze_content_sync.py b/packages/google-cloud-dialogflow/samples/generated_samples/dialogflow_v2_generated_participants_streaming_analyze_content_sync.py
index b99cb62d1737..a2a254ea096b 100644
--- a/packages/google-cloud-dialogflow/samples/generated_samples/dialogflow_v2_generated_participants_streaming_analyze_content_sync.py
+++ b/packages/google-cloud-dialogflow/samples/generated_samples/dialogflow_v2_generated_participants_streaming_analyze_content_sync.py
@@ -40,7 +40,7 @@ def sample_streaming_analyze_content():
 
     # Initialize request argument(s)
     audio_config = dialogflow_v2.InputAudioConfig()
-    audio_config.audio_encoding = "AUDIO_ENCODING_SPEEX_WITH_HEADER_BYTE"
+    audio_config.audio_encoding = "AUDIO_ENCODING_ALAW"
     audio_config.sample_rate_hertz = 1817
     audio_config.language_code = "language_code_value"
 
diff --git a/packages/google-cloud-dialogflow/samples/generated_samples/dialogflow_v2_generated_sessions_detect_intent_async.py b/packages/google-cloud-dialogflow/samples/generated_samples/dialogflow_v2_generated_sessions_detect_intent_async.py
index 3e398b3f4df6..2fa858e2bd9f 100644
--- a/packages/google-cloud-dialogflow/samples/generated_samples/dialogflow_v2_generated_sessions_detect_intent_async.py
+++ b/packages/google-cloud-dialogflow/samples/generated_samples/dialogflow_v2_generated_sessions_detect_intent_async.py
@@ -40,7 +40,7 @@ async def sample_detect_intent():
 
     # Initialize request argument(s)
     query_input = dialogflow_v2.QueryInput()
-    query_input.audio_config.audio_encoding = "AUDIO_ENCODING_SPEEX_WITH_HEADER_BYTE"
+    query_input.audio_config.audio_encoding = "AUDIO_ENCODING_ALAW"
     query_input.audio_config.sample_rate_hertz = 1817
     query_input.audio_config.language_code = "language_code_value"
 
diff --git a/packages/google-cloud-dialogflow/samples/generated_samples/dialogflow_v2_generated_sessions_detect_intent_sync.py b/packages/google-cloud-dialogflow/samples/generated_samples/dialogflow_v2_generated_sessions_detect_intent_sync.py
index 297e7a9332f5..836cee509472 100644
--- a/packages/google-cloud-dialogflow/samples/generated_samples/dialogflow_v2_generated_sessions_detect_intent_sync.py
+++ b/packages/google-cloud-dialogflow/samples/generated_samples/dialogflow_v2_generated_sessions_detect_intent_sync.py
@@ -40,7 +40,7 @@ def sample_detect_intent():
 
     # Initialize request argument(s)
     query_input = dialogflow_v2.QueryInput()
-    query_input.audio_config.audio_encoding = "AUDIO_ENCODING_SPEEX_WITH_HEADER_BYTE"
+    query_input.audio_config.audio_encoding = "AUDIO_ENCODING_ALAW"
     query_input.audio_config.sample_rate_hertz = 1817
     query_input.audio_config.language_code = "language_code_value"
 
diff --git a/packages/google-cloud-dialogflow/samples/generated_samples/dialogflow_v2_generated_sessions_streaming_detect_intent_async.py b/packages/google-cloud-dialogflow/samples/generated_samples/dialogflow_v2_generated_sessions_streaming_detect_intent_async.py
index 540b21d4a829..a0b52da11775 100644
--- a/packages/google-cloud-dialogflow/samples/generated_samples/dialogflow_v2_generated_sessions_streaming_detect_intent_async.py
+++ b/packages/google-cloud-dialogflow/samples/generated_samples/dialogflow_v2_generated_sessions_streaming_detect_intent_async.py
@@ -40,7 +40,7 @@ async def sample_streaming_detect_intent():
 
     # Initialize request argument(s)
     query_input = dialogflow_v2.QueryInput()
-    query_input.audio_config.audio_encoding = "AUDIO_ENCODING_SPEEX_WITH_HEADER_BYTE"
+    query_input.audio_config.audio_encoding = "AUDIO_ENCODING_ALAW"
     query_input.audio_config.sample_rate_hertz = 1817
     query_input.audio_config.language_code = "language_code_value"
 
diff --git a/packages/google-cloud-dialogflow/samples/generated_samples/dialogflow_v2_generated_sessions_streaming_detect_intent_sync.py b/packages/google-cloud-dialogflow/samples/generated_samples/dialogflow_v2_generated_sessions_streaming_detect_intent_sync.py
index 34b9599f4d5a..6b154fd948c9 100644
--- a/packages/google-cloud-dialogflow/samples/generated_samples/dialogflow_v2_generated_sessions_streaming_detect_intent_sync.py
+++ b/packages/google-cloud-dialogflow/samples/generated_samples/dialogflow_v2_generated_sessions_streaming_detect_intent_sync.py
@@ -40,7 +40,7 @@ def sample_streaming_detect_intent():
 
     # Initialize request argument(s)
     query_input = dialogflow_v2.QueryInput()
-    query_input.audio_config.audio_encoding = "AUDIO_ENCODING_SPEEX_WITH_HEADER_BYTE"
+    query_input.audio_config.audio_encoding = "AUDIO_ENCODING_ALAW"
     query_input.audio_config.sample_rate_hertz = 1817
     query_input.audio_config.language_code = "language_code_value"
 
diff --git a/packages/google-cloud-dialogflow/samples/generated_samples/snippet_metadata_google.cloud.dialogflow.v2.json b/packages/google-cloud-dialogflow/samples/generated_samples/snippet_metadata_google.cloud.dialogflow.v2.json
index 7e99cd1321e2..dde14d384e60 100644
--- a/packages/google-cloud-dialogflow/samples/generated_samples/snippet_metadata_google.cloud.dialogflow.v2.json
+++ b/packages/google-cloud-dialogflow/samples/generated_samples/snippet_metadata_google.cloud.dialogflow.v2.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-dialogflow",
-    "version": "2.32.0"
+    "version": "0.1.0"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-dialogflow/samples/generated_samples/snippet_metadata_google.cloud.dialogflow.v2beta1.json b/packages/google-cloud-dialogflow/samples/generated_samples/snippet_metadata_google.cloud.dialogflow.v2beta1.json
index a9752b2203e1..58a96bc185e8 100644
--- a/packages/google-cloud-dialogflow/samples/generated_samples/snippet_metadata_google.cloud.dialogflow.v2beta1.json
+++ b/packages/google-cloud-dialogflow/samples/generated_samples/snippet_metadata_google.cloud.dialogflow.v2beta1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-dialogflow",
-    "version": "2.32.0"
+    "version": "0.1.0"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-dialogflow/tests/unit/gapic/dialogflow_v2/test_conversation_datasets.py b/packages/google-cloud-dialogflow/tests/unit/gapic/dialogflow_v2/test_conversation_datasets.py
index e5c420409ba5..9b288c8fa5a9 100644
--- a/packages/google-cloud-dialogflow/tests/unit/gapic/dialogflow_v2/test_conversation_datasets.py
+++ b/packages/google-cloud-dialogflow/tests/unit/gapic/dialogflow_v2/test_conversation_datasets.py
@@ -1641,6 +1641,8 @@ def test_get_conversation_dataset(request_type, transport: str = "grpc"):
             display_name="display_name_value",
             description="description_value",
             conversation_count=1955,
+            satisfies_pzi=True,
+            satisfies_pzs=True,
         )
         response = client.get_conversation_dataset(request)
 
@@ -1656,6 +1658,8 @@ def test_get_conversation_dataset(request_type, transport: str = "grpc"):
     assert response.display_name == "display_name_value"
     assert response.description == "description_value"
     assert response.conversation_count == 1955
+    assert response.satisfies_pzi is True
+    assert response.satisfies_pzs is True
 
 
 def test_get_conversation_dataset_empty_call():
@@ -1769,6 +1773,8 @@ async def test_get_conversation_dataset_empty_call_async():
                 display_name="display_name_value",
                 description="description_value",
                 conversation_count=1955,
+                satisfies_pzi=True,
+                satisfies_pzs=True,
             )
         )
         response = await client.get_conversation_dataset()
@@ -1844,6 +1850,8 @@ async def test_get_conversation_dataset_async(
                 display_name="display_name_value",
                 description="description_value",
                 conversation_count=1955,
+                satisfies_pzi=True,
+                satisfies_pzs=True,
             )
         )
         response = await client.get_conversation_dataset(request)
@@ -1860,6 +1868,8 @@ async def test_get_conversation_dataset_async(
     assert response.display_name == "display_name_value"
     assert response.description == "description_value"
     assert response.conversation_count == 1955
+    assert response.satisfies_pzi is True
+    assert response.satisfies_pzs is True
 
 
 @pytest.mark.asyncio
@@ -3336,6 +3346,8 @@ def test_create_conversation_dataset_rest(request_type):
         "input_config": {"gcs_source": {"uris": ["uris_value1", "uris_value2"]}},
         "conversation_info": {"language_code": "language_code_value"},
         "conversation_count": 1955,
+        "satisfies_pzi": True,
+        "satisfies_pzs": True,
     }
     # The version of a generated dependency at test runtime may differ from the version used during generation.
     # Delete any fields which are not present in the current runtime dependency
@@ -3740,6 +3752,8 @@ def test_get_conversation_dataset_rest(request_type):
             display_name="display_name_value",
             description="description_value",
             conversation_count=1955,
+            satisfies_pzi=True,
+            satisfies_pzs=True,
         )
 
         # Wrap the value into a proper Response obj
@@ -3759,6 +3773,8 @@ def test_get_conversation_dataset_rest(request_type):
     assert response.display_name == "display_name_value"
     assert response.description == "description_value"
     assert response.conversation_count == 1955
+    assert response.satisfies_pzi is True
+    assert response.satisfies_pzs is True
 
 
 def test_get_conversation_dataset_rest_use_cached_wrapped_rpc():