Update app.py

app.py

@@ -22,8 +22,9 @@ st.title('Ares Demo')
 
 query = st.text_input('Movie title', 'Best taco spots in San Francisco')
 
-response_text,urls = inference(query)
-
-st.write('Query Result', response_text)
-st.write('Sources',urls)
+if query:
+    response_text,urls = inference(query)
+    
+    st.write('Query Result', response_text)
+    st.write('Sources',urls)