chat response

app.py

@@ -380,14 +380,14 @@ def create_interface():
             global message_store
             
             if not message or not message.strip():
-                return chat_history, ""
+                return chat_history, "", "*Please enter a message*"
             
             # Format message for display with audio indicator if needed
             display_message = message_store.add_message(message, audio_data)
             
             # Add user message to history
             chat_history.append((display_message, None))
-            yield chat_history, ""
+            yield chat_history, "", "*Processing your request...*"
             
             try:
                 # Generate response
@@ -407,7 +407,7 @@ def create_interface():
                 error_msg = f"Error: {str(e)}"
                 chat_history[-1] = (display_message, error_msg)
                 yield chat_history, "", f"*{error_msg}*"
-        
+                
         # Connect submit button
         submit_btn.click(
             chat_response,