generate response: Can I get a table for 1 at the Backstreet Bistro? Saturday at 17:15, if possible.. Intent: book_restaurant. Slots: restaurant-area=centre, restaurant-bookday=saturday, restaurant-bookpeople=1, restaurant-booktime=17:15, restaurant-food=gastropub, restaurant-name=backstreet bistro, restaurant-pricerange=expensive
Response: It's all booked, your reference number is STQ9N9UV