generate response: Please book it for 4 people at 18:30 on Saturday evening.. Intent: book_restaurant. Slots: restaurant-area=centre, restaurant-bookday=saturday, restaurant-bookpeople=4, restaurant-booktime=18:30, restaurant-food=italian, restaurant-name=zizzi cambridge, restaurant-pricerange=cheap
Response: Okay, booking was successful. The table will be reserved for 15 minutes. Your reference number is AA76LKSA .