generate response: I'm not looking for anything in particular, could you choose one and book a table at 13:45 for 2 on Wednesday?. Intent: find_hotel. Slots: restaurant-area=centre, restaurant-bookday=wednesday, restaurant-bookpeople=2, restaurant-booktime=13:45, restaurant-pricerange=cheap
Response: Unfortunately, that time slot isn't available. Would you like to try a different time?