Fix a nameerror

app.py

@@ -8,8 +8,8 @@ with open("tokenizer.pckl", "rb") as file:
     tokenizer = pickle.load(file)
 
 def classify(text: str, response: str):
-    question = list(tokenizer.texts_to_sequences([q.lower(),])[0])
-    answer = list(tokenizer.texts_to_sequences([a.lower(),])[0])
+    question = list(tokenizer.texts_to_sequences([text.lower(),])[0])
+    answer = list(tokenizer.texts_to_sequences([response.lower(),])[0])
     arr = np.array([(list(question)+[0,]*l1)[:l1]+(list(answer)+[0,]*l2)[:l2],])
     prediction = model.predict(arr)[0][0]
     if prediction > 0.9: