generate response: can you book it for sunday afternoon?. Intent: book_train. Slots: restaurant-area=east, restaurant-bookday=sunday, restaurant-bookpeople=3, restaurant-food=international, restaurant-pricerange=cheap, train-arriveby=11:32, train-bookpeople=3, train-departure=broxbourne, train-destination=cambridge, train-leaveat=10:32
Response: What time exactly would you like to dine?