generate response: Please book it for me.I also need a place to stay,a guesthouse with free parking ?. Intent: book_train. Slots: hotel-parking=yes, hotel-type=guesthouse, train-arriveby=15:07, train-bookpeople=1, train-day=friday, train-departure=london liverpool street, train-destination=cambridge, train-leaveat=13:39
Response: I have booked the train for you. The reference number is JN7FFTTY .