Update app.py

app.py

@@ -37,7 +37,7 @@ table = pd.DataFrame.from_dict(data)
 def predict(input, history=[]):
 
     # Check if the user input is a question
-    is_question = "?" in user_message
+    is_question = "?" in input
     
     # tokenize the new input sentence
     new_user_input_ids = tokenizer.encode(input + tokenizer.eos_token, return_tensors='pt')