Update chat_interface.py

chat_interface.py

@@ -123,7 +123,7 @@ def predict(input: str, history):
         with log_file.open("a") as f:
             f.write(json.dumps(
                 {
-                    'user_input': user_input,
+                    'user_input': input,
                     'retrieved_context': context_for_query,
                     'model_response': prediction
                 }