generate response: I need to arrive by 9:15. I will also need tickets for 2.. Intent: book_train. Slots: train-arriveby=9:15, 09:15, train-bookpeople=2, train-day=sunday, train-departure=london liverpool street, train-destination=cambridge
Response: I've got you on the TR4678, leaving London at 7:39 and arriving in Cambridge at 9:07. Reference number is 79ZUO01J and the total fee is 26.56 GBP payable at the station.