generate response: Yes. Please book a seat on train TR6332 for me.. Intent: book_train. Slots: train-arriveby=20:30, train-bookpeople=1, train-day=thursday, train-departure=cambridge, train-destination=london liverpool street
Response: Ok, I have successfully booked a seat on TR6332. The cost will be 16.6 GBP and your reference number is QQ53PXEI .