Update app.py

app.py

@@ -84,12 +84,14 @@ def generate_response(
     first_msg = f"{system_message}\n\nContext: {context}\nQuestion: {message}"
     messages.append({"role": "user", "content": first_msg})
 
-    # Add conversation history ensuring alternating pattern
+    # Add conversation history ensuring alternating pattern (user, assistant, user, assistant...)
     for i, (user_msg, bot_msg) in enumerate(history):
-        if bot_msg:  # Add assistant's previous response
-            messages.append({"role": "assistant", "content": bot_msg})
-        if user_msg:  # Add user's previous message
-            messages.append({"role": "user", "content": user_msg})
+        if i % 2 == 0:  # Even index: it's a user message
+            if user_msg:
+                messages.append({"role": "user", "content": user_msg})
+        else:  # Odd index: it's an assistant message
+            if bot_msg:
+                messages.append({"role": "assistant", "content": bot_msg})
 
     try:
         response = ""