generate response: How about a table at 19:30? Can you reserve that please?. Intent: book_restaurant. Slots: restaurant-area=centre, restaurant-bookday=tuesday, restaurant-bookpeople=1, restaurant-booktime=19:30, restaurant-food=dontcare, restaurant-name=the oak bistro, restaurant-pricerange=moderate
Response: I apologize but that doesn't seem to be available either. Would you like me to try a different restaurant?