generate response: Can you book a table at the Bistro for me? 4 people at 13:30 on Sunday, please.. Intent: book_restaurant. Slots: restaurant-area=centre, restaurant-bookday=sunday, restaurant-bookpeople=4, restaurant-booktime=13:30, restaurant-food=gastropub, restaurant-name=backstreet bistro, bistro, restaurant-pricerange=expensive
Response: Booking was successful. The table will be reserved for 15 minutes. Reference number is : NSLKEI1G .