generate response: That's alright. I can book it later. I'm also looking to book a train.. Intent: book_train. Slots: train-arriveby=12:56, train-bookpeople=1, train-day=sunday, train-departure=cambridge, train-destination=peterborough, train-leaveat=12:06
Response: It looks as though your train has already been booked. The train arrives at 12:56 and departs at 12:06 on Sunday. The train ID number is TR8517.