generate response: Could you book it for 3 people and for 3 nights starting on sunday?. Intent: book_hotel. Slots: hotel-bookday=sunday, hotel-bookpeople=3, hotel-bookstay=3, hotel-name=express by holiday inn cambridge, hotel-pricerange=expensive, hotel-type=hotel
Response: Okay, the booking was successful. Your reference number is : 3EJ2CUS3 .