generate response: How about at 16:45?. Intent: find_taxi. Slots: restaurant-area=north, restaurant-bookday=friday, restaurant-bookpeople=3, restaurant-booktime=16:45, restaurant-food=european, restaurant-name=city stop restaurant, restaurant-pricerange=expensive
Response: Booking was successful. The table will be reserved for 15 minutes. The reference number is: 0PK0TW8F