generate response: Anything that is available for 6 people on tuesday at 19:15.. Intent: book_restaurant. Slots: restaurant-area=east, restaurant-bookday=tuesday, restaurant-bookpeople=6, restaurant-booktime=19:15, restaurant-food=dontcare, restaurant-pricerange=expensive
Response: My apologies. I tried to book at the east expensive restaurants for Tuesday at 19:15, but there was nothing available. Do you have a different day or time preference?