diff --git a/google/cloud/dialogflow/cx/v3beta1/BUILD.bazel b/google/cloud/dialogflow/cx/v3beta1/BUILD.bazel
index 7a804b20..6276951b 100644
--- a/google/cloud/dialogflow/cx/v3beta1/BUILD.bazel
+++ b/google/cloud/dialogflow/cx/v3beta1/BUILD.bazel
@@ -161,9 +161,9 @@ go_gapic_library(
     service_yaml = "dialogflow_v3beta1.yaml",
     deps = [
         ":cx_go_proto",
-        "@com_google_cloud_go//longrunning/autogen:go_default_library",
         "//google/longrunning:longrunning_go_proto",
         "@com_google_cloud_go//longrunning:go_default_library",
+        "@com_google_cloud_go//longrunning/autogen:go_default_library",
         "@io_bazel_rules_go//proto/wkt:duration_go_proto",
         "@io_bazel_rules_go//proto/wkt:struct_go_proto",
     ],
diff --git a/google/cloud/dialogflow/cx/v3beta1/agent.proto b/google/cloud/dialogflow/cx/v3beta1/agent.proto
index c6ffbca7..473475d6 100644
--- a/google/cloud/dialogflow/cx/v3beta1/agent.proto
+++ b/google/cloud/dialogflow/cx/v3beta1/agent.proto
@@ -316,12 +316,3 @@ message RestoreAgentRequest {
     bytes agent_content = 3;
   }
 }
-
-// The response message for [Agents.ImportAgent][google.cloud.dialogflow.cx.v3beta1.Agents.ImportAgent].
-message ImportAgentResponse {
-  // The unique identifier of the new agent.
-  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent ID>`.
-  string agent = 1 [(google.api.resource_reference) = {
-                      type: "dialogflow.googleapis.com/Agent"
-                    }];
-}
diff --git a/google/cloud/dialogflow/cx/v3beta1/dialogflow_v3beta1.yaml b/google/cloud/dialogflow/cx/v3beta1/dialogflow_v3beta1.yaml
index db1bdf9c..42a8c13d 100644
--- a/google/cloud/dialogflow/cx/v3beta1/dialogflow_v3beta1.yaml
+++ b/google/cloud/dialogflow/cx/v3beta1/dialogflow_v3beta1.yaml
@@ -19,7 +19,6 @@ apis:
 types:
 - name: google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata
 - name: google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse
-- name: google.cloud.dialogflow.cx.v3beta1.ImportAgentResponse
 - name: google.cloud.dialogflow.cx.v3beta1.WebhookRequest
 - name: google.cloud.dialogflow.cx.v3beta1.WebhookResponse
 
diff --git a/google/cloud/dialogflow/cx/v3beta1/intent.proto b/google/cloud/dialogflow/cx/v3beta1/intent.proto
index b6057720..53b74fae 100644
--- a/google/cloud/dialogflow/cx/v3beta1/intent.proto
+++ b/google/cloud/dialogflow/cx/v3beta1/intent.proto
@@ -195,6 +195,24 @@ message Intent {
   // requests that are mistakenly matched, since training phrases assigned to
   // fallback intents act as negative examples that triggers no-match event.
   bool is_fallback = 6;
+
+  // Optional. The key/value metadata to label an intent. Labels can contain
+  // lowercase letters, digits and the symbols '-' and '_'. International
+  // characters are allowed, including letters from unicase alphabets. Keys must
+  // start with a letter. Keys and values can be no longer than 63 characters
+  // and no more than 128 bytes.
+  //
+  // Prefix "sys-" is reserved for Dialogflow defined labels. Currently allowed
+  // Dialogflow defined labels include:
+  // * sys-head
+  // * sys-contextual
+  // The above labels do not require value. "sys-head" means the intent is a
+  // head intent. "sys-contextual" means the intent is a contextual intent.
+  map<string, string> labels = 7 [(google.api.field_behavior) = OPTIONAL];
+
+  // Optional. Human readable description for better understanding an intent like its
+  // scope, content, result etc. Maximum character limit: 140 characters.
+  string description = 8 [(google.api.field_behavior) = OPTIONAL];
 }
 
 // The request message for [Intents.ListIntents][google.cloud.dialogflow.cx.v3beta1.Intents.ListIntents].
diff --git a/google/cloud/dialogflow/cx/v3beta1/response_message.proto b/google/cloud/dialogflow/cx/v3beta1/response_message.proto
index 1627520e..7a9f9650 100644
--- a/google/cloud/dialogflow/cx/v3beta1/response_message.proto
+++ b/google/cloud/dialogflow/cx/v3beta1/response_message.proto
@@ -113,25 +113,6 @@ message ResponseMessage {
     bool allow_playback_interruption = 3 [(google.api.field_behavior) = OUTPUT_ONLY];
   }
 
-  // Indicates that interaction with the Dialogflow agent has ended.
-  // This message is generated by Dialogflow only and not supposed to be
-  // defined by the user.
-  message EndInteraction {
-
-  }
-
-  // Specifies an audio clip to be played by the client as part of the response.
-  message PlayAudio {
-    // Required. URI of the audio clip. Dialogflow does not impose any validation on this
-    // value. It is specific to the client that reads it.
-    string audio_uri = 1 [(google.api.field_behavior) = REQUIRED];
-
-    // Output only. Whether the playback of this message can be interrupted by the end
-    // user's speech and the client can then starts the next Dialogflow
-    // request.
-    bool allow_playback_interruption = 2 [(google.api.field_behavior) = OUTPUT_ONLY];
-  }
-
   // Represents an audio message that is composed of both segments
   // synthesized from the Dialogflow agent prompts and ones hosted externally
   // at the specified URIs.
@@ -163,6 +144,25 @@ message ResponseMessage {
     repeated Segment segments = 1;
   }
 
+  // Indicates that interaction with the Dialogflow agent has ended.
+  // This message is generated by Dialogflow only and not supposed to be
+  // defined by the user.
+  message EndInteraction {
+
+  }
+
+  // Specifies an audio clip to be played by the client as part of the response.
+  message PlayAudio {
+    // Required. URI of the audio clip. Dialogflow does not impose any validation on this
+    // value. It is specific to the client that reads it.
+    string audio_uri = 1 [(google.api.field_behavior) = REQUIRED];
+
+    // Output only. Whether the playback of this message can be interrupted by the end
+    // user's speech and the client can then starts the next Dialogflow
+    // request.
+    bool allow_playback_interruption = 2 [(google.api.field_behavior) = OUTPUT_ONLY];
+  }
+
   // Required. The rich response message.
   oneof message {
     // Returns a text response.
diff --git a/google/cloud/dialogflow/cx/v3beta1/session.proto b/google/cloud/dialogflow/cx/v3beta1/session.proto
index 27fdeb15..397c2078 100644
--- a/google/cloud/dialogflow/cx/v3beta1/session.proto
+++ b/google/cloud/dialogflow/cx/v3beta1/session.proto
@@ -400,6 +400,9 @@ message QueryInput {
 
     // The event to be triggered.
     EventInput event = 6;
+
+    // The DTMF event to be handled.
+    DtmfInput dtmf = 7;
   }
 
   // Required. The language of the input. See [Language
@@ -543,6 +546,15 @@ message EventInput {
   string event = 1;
 }
 
+// Represents the input for dtmf event.
+message DtmfInput {
+  // The dtmf digits.
+  string digits = 1;
+
+  // The finish digit (if any).
+  string finish_digit = 2;
+}
+
 // Represents one match result of [MatchIntent][].
 message Match {
   // Type of a Match.