generate response: Yes, for six people, please. I will need a reference number, as well.. Intent: book_train. Slots: train-arriveby=21:30, train-bookpeople=6, train-day=sunday, train-departure=cambridge, train-destination=london liverpool street
Response: I have completed the booking. The total fee is 79.67 GBP and your reference number is 58YNZ8EQ .