generate response: I want a train for tuesday that departs after 09:30. Intent: find_train. Slots: hotel-area=centre, hotel-bookday=tuesday, hotel-bookpeople=7, hotel-bookstay=2, hotel-pricerange=expensive, hotel-stars=4, hotel-type=hotel, train-day=tuesday, train-departure=cambridge, train-destination=stansted airport, train-leaveat=09:30
Response: There are 15 trains available. Should I book a train for you?