Update app.py

app.py

@@ -65,15 +65,19 @@ PDF CONTENT:
 {pdf_context}
 Answer the user's questions only based on the PDF content above. If the answer cannot be found in the PDF, politely state that the information is not available in the provided document."""
 
-        messages= [
+         # Prepare message history for Together API
+        messages = [
             {"role": "system", "content": system_message},
         ]
+        
+        # Add chat history
         for h_user, h_bot in history:
             messages.append({"role": "user", "content": h_user})
             messages.append({"role": "assistant", "content": h_bot})
+        
+        # Add the current user question
+        messages.append({"role": "user", "content": user_question})
 
-        #add the current user question into history
-        messages.append(["role": "user", "content": user_question])
 
         #connect the model with the app
         reponse = client.chat.completions.create(