generate response: Yes please, I would like to book it for 7 people for 5 nights on Saturday, and I need a reference number.. Intent: find_train. Slots: hotel-area=north, hotel-bookday=saturday, hotel-bookpeople=7, hotel-bookstay=5, hotel-internet=yes, hotel-name=acorn guest house, hotel-pricerange=moderate, hotel-type=guesthouse, train-arriveby=10:30, 10.30, train-day=saturday, train-departure=birmingham new street, train-destination=cambridge
Response: I'm very sorry I was unable to book at acorn guest house for 5 nights, would you like to try for a shorter stay?