generate response: There are two of us departing from kings lynn and we need to arrive by 16:45. Can you book it for 2 people and send me the reference number?. Intent: book_train. Slots: train-arriveby=16:45, train-bookpeople=2, train-day=friday, train-departure=kings lynn, train-destination=cambridge
Response: I booked TR5331 for you. Your reference is GPFBA8K5 .