generate response: If 21:00 and 20:00 are not available, I guess I am not interested in booking anything. Can you check one more time for 20:00?. Intent: book_restaurant. Slots: restaurant-bookday=friday, restaurant-bookpeople=1, restaurant-booktime=20:00, restaurant-name=graffiti
Response: It was still unsuccessful. I am sorry. Any other times you would like me to check?