Update app.py

app.py

@@ -39,6 +39,8 @@ def reply(input, dataset_name):
     try:
         if dataset_name not in dataframes:
             return "Invalid dataset selected. Please select a valid dataset."
+        if not input:
+            return "Please Enter a Question to get an Answer"
         df = dataframes[dataset_name]
         input = input
         input_vector = generate_embeddings(input, model_id,hf_token)