generate response: Actually I'd like to book that hotel for two nights, starting Sunday for 6 people for two nights. I'll need a reference number as well.. Intent: book_train. Slots: hotel-bookday=sunday, hotel-bookpeople=6, hotel-bookstay=2, hotel-name=home from home, train-bookpeople=6, train-day=sunday, train-departure=stansted airport, train-leaveat=16:00
Response: You have already been booked for 2 nights, starting on Sunday. Is there an additional day you would like to stay?