diff --git a/google-api-grpc/proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/session.proto b/google-api-grpc/proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/session.proto
index 8f5d7323b0ae..e10bb6db836d 100644
--- a/google-api-grpc/proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/session.proto
+++ b/google-api-grpc/proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/session.proto
@@ -459,25 +459,6 @@ message TextInput {
   string language_code = 2;
 }
 
-// Events allow for matching intents by event name instead of the natural
-// language input. For instance, input `<event: { name: "welcome_event",
-// parameters: { name: "Sam" } }>` can trigger a personalized welcome response.
-// The parameter `name` may be used by the agent in the response:
-// `"Hello #welcome_event.name! What can I do for you today?"`.
-message EventInput {
-  // Required. The unique identifier of the event.
-  string name = 1;
-
-  // Optional. The collection of parameters associated with the event.
-  google.protobuf.Struct parameters = 2;
-
-  // Required. The language of this query. See [Language
-  // Support](https://cloud.google.com/dialogflow-enterprise/docs/reference/language)
-  // for a list of the currently supported language codes. Note that queries in
-  // the same session do not necessarily need to specify the same language.
-  string language_code = 3;
-}
-
 // Audio encoding of the audio content sent in the conversational query request.
 // Refer to the
 // [Cloud Speech API
@@ -527,6 +508,25 @@ enum AudioEncoding {
   AUDIO_ENCODING_SPEEX_WITH_HEADER_BYTE = 7;
 }
 
+// Events allow for matching intents by event name instead of the natural
+// language input. For instance, input `<event: { name: "welcome_event",
+// parameters: { name: "Sam" } }>` can trigger a personalized welcome response.
+// The parameter `name` may be used by the agent in the response:
+// `"Hello #welcome_event.name! What can I do for you today?"`.
+message EventInput {
+  // Required. The unique identifier of the event.
+  string name = 1;
+
+  // Optional. The collection of parameters associated with the event.
+  google.protobuf.Struct parameters = 2;
+
+  // Required. The language of this query. See [Language
+  // Support](https://cloud.google.com/dialogflow-enterprise/docs/reference/language)
+  // for a list of the currently supported language codes. Note that queries in
+  // the same session do not necessarily need to specify the same language.
+  string language_code = 3;
+}
+
 // Configures the types of sentiment analysis to perform.
 message SentimentAnalysisRequestConfig {
   // Optional. Instructs the service to perform sentiment analysis on
diff --git a/google-cloud-clients/google-cloud-dialogflow/synth.metadata b/google-cloud-clients/google-cloud-dialogflow/synth.metadata
index 6057c1e9b9e9..c12021cfdfc0 100644
--- a/google-cloud-clients/google-cloud-dialogflow/synth.metadata
+++ b/google-cloud-clients/google-cloud-dialogflow/synth.metadata
@@ -1,19 +1,19 @@
 {
-  "updateTime": "2019-04-02T07:42:46.517969Z",
+  "updateTime": "2019-04-10T07:43:29.853673Z",
   "sources": [
     {
       "generator": {
         "name": "artman",
-        "version": "0.16.22",
-        "dockerImage": "googleapis/artman@sha256:e7f9554322a8aa1416c122c918fdc4cdec8cfe816f027fc948dec0be7edef320"
+        "version": "0.16.25",
+        "dockerImage": "googleapis/artman@sha256:d9597f983d1d4e61272c63cb97b7d8f8234da9999526c35d357de3d781f0ec1b"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "6c48ab5aef47dc14e02e2dc718d232a28067129d",
-        "internalRef": "241437588"
+        "sha": "3f57de2fbe951640b587d9c2d503daf554747749",
+        "internalRef": "242707837"
       }
     }
   ],