diff --git a/homeassistant/components/google_assistant/__init__.py b/homeassistant/components/google_assistant/__init__.py
index bf0c72ec1c8..c0dff15d888 100644
--- a/homeassistant/components/google_assistant/__init__.py
+++ b/homeassistant/components/google_assistant/__init__.py
@@ -67,7 +67,7 @@ async def async_setup(hass: HomeAssistant, yaml_config: Dict[str, Any]):
         """Handle request sync service calls."""
         websession = async_get_clientsession(hass)
         try:
-            with async_timeout.timeout(5, loop=hass.loop):
+            with async_timeout.timeout(15, loop=hass.loop):
                 agent_user_id = call.data.get('agent_user_id') or \
                                 call.context.user_id
                 res = await websession.post(
diff --git a/homeassistant/components/google_assistant/services.yaml b/homeassistant/components/google_assistant/services.yaml
index 7d3af71ac2b..33a52c8ef60 100644
--- a/homeassistant/components/google_assistant/services.yaml
+++ b/homeassistant/components/google_assistant/services.yaml
@@ -2,4 +2,4 @@ request_sync:
   description: Send a request_sync command to Google.
   fields:
     agent_user_id:
-      description: Optional. Only needed for automations. Specific Home Assistant user id to sync with Google Assistant. Do not need when you call this service through Home Assistant front end or API. Used in automation script or other place where context.user_id is missing.
+      description: "Optional. Only needed for automations. Specific Home Assistant user id (not username, ID in configuration > users > under username) to sync with Google Assistant. Do not need when you call this service through Home Assistant front end or API. Used in automation script or other place where context.user_id is missing."