generate response: How about 15:30?. Intent: book_restaurant. Slots: restaurant-area=centre, restaurant-bookday=sunday, restaurant-bookpeople=1, restaurant-booktime=15:30, restaurant-food=european, restaurant-name=hotel du vin and bistro, restaurant-pricerange=moderate
Response: They do indeed have a table at that time. Your reference number is 0WBNIZLJ .