generate response: I would like to leave after 15:30. I will need to book for 6 people.. Intent: book_train. Slots: train-bookpeople=6, train-day=friday, train-departure=london liverpool street, train-destination=cambridge, train-leaveat=15:30
Response: I've got you all booked! You have 6 tickets on the TR9802 for a total of 99.60 gbp and you can pay at the train station. Anything else?