Update app.py

app.py

@@ -42,7 +42,7 @@ def call_openai_api(user_prompt):
                 ],
              )
             ai_response = response.choices[0].message['content']
-            chat_history += f"\nUser: {user_prompt}\nAI: {ai_response} \n"
+            chat_history += f"\nUser: {user_prompt}\nAI: {ai_response}\n"
             return chat_history
         except Exception as e:
             if attempt < max_retries - 1:  # if it's not the last attempt