Add assistant response handling information

guides/assistant.mdx

@@ -12,7 +12,7 @@
 
 The assistant answers questions about your documentation through natural language queries. It is embedded directly in your documentation site, providing users with immediate access to contextual help.
 
 The assistant uses agentic RAG (retrieval-augmented generation) with tool calling powered by Claude Sonnet 4. When users ask questions, the assistant:
 
 * **Searches and retrieves** relevant content from your documentation to provide accurate answers.
 * **Cites sources** and provides navigable links to take users directly to referenced pages.
@@ -26,15 +26,25 @@
 * Content gaps where users struggle to find answers.
 * Popular topics that could benefit from additional content.
 
-## Managing the assistant
+## Configuring the assistant
 
-The assistant is enabled by default for Pro and Custom plans. You can manage the assistant from your [dashboard](https://dashboard.mintlify.com/products/assistant/settings).
+The assistant is enabled by default for Pro and Custom plans. You can manage the assistant from your [dashboard](https://dashboard.mintlify.com/products/assistant/settings), including enabling or disabling it, configuring response handling, and setting a spend limit.
 
-**Enable or disable the assistant**
+### Enable or disable the assistant
 
 Toggle the assistant status to enable or disable the assistant for your documentation site.
 
-**Spend limit**
+### Response handling
+
+Configure how the assistant responds when it cannot find answers in your documentation. You can redirect unanswered questions to your support team and enable the assistant to search external websites.
+
+- **Assistant Deflection**: When enabled, the assistant directs users to your support team for questions that it cannot answer.
+- **Search Sites**: The assistant can search specified external sites for additional context when answering questions.
+  <Note>
+    Site search is in beta. To enable it for your documentation site, [contact our sales team](mailto:[email protected]). 
+  </Note>
+
+### Spend limit
 
 Set a spend limit to control what happens if you reach your message allowance. By default, the assistant will continue to answer user questions after you reach your message allowance, which incurs overages.
 
@@ -46,7 +56,7 @@
 
 Users can access the assistant in three ways:
 
 - **Keyboard shortcuts**: <kbd>?</kbd> or <kbd>Command</kbd> + <kbd>I</kbd> (<kbd>Ctrl</kbd> + <kbd>I</kbd> on Windows)
 - **Assistant button** next to the search bar
   <img
     src="/images/assistant/assistant-button-light.png"
@@ -70,7 +80,7 @@
 
 Both methods open a chat panel on the right side of your docs. Users can ask any question and the assistant will search your documentation for an answer. If no relevant information is found, the assistant will respond that it cannot answer the question.
 
 ## Making content AI ingestible
 
 Structure your documentation to help the assistant provide accurate, relevant answers. Clear organization and comprehensive context benefit both human readers and AI understanding.
 
@@ -79,7 +89,7 @@
   - Write descriptive headings for sections.
   - Create a logical information hierarchy.
   - Use consistent formatting across your docs.
   - Include comprehensive metadata in page frontmatter.
   - Break up long blocks of text into shorter paragraphs.
 </Card>