generate response: Yes, the Express is fine. I need it for 2 people and for 3 nights starting Wednesday. I need the reference number, please.. Intent: book_hotel. Slots: hotel-bookday=wednesday, hotel-bookpeople=2, hotel-bookstay=3, hotel-internet=yes, hotel-parking=yes, hotel-stars=2
Response: Booking was unsuccessful. Do you want to change the preferences?