generate response: I need to arrive by 18:45. Intent: book_restaurant. Slots: taxi-arriveby=18:45, taxi-departure=cambridge artworks, taxi-destination=river bar and steakhouse, the river bar steakhouse and grill, restaurant-bookday=sunday, restaurant-bookpeople=7, restaurant-booktime=18:45, restaurant-food=european, restaurant-name=the river bar steakhouse and grill, river bar and steakhouse, restaurant-pricerange=cheap
Response: I was able to book your taxi. It is a grey bmw and contact number is 07373540182