generate response: Cheap price range please. Intent: find_train. Slots: hotel-internet=yes, hotel-pricerange=cheap, hotel-stars=3, train-day=thursday, train-departure=cambridge, train-destination=norwich, train-leaveat=09:30, 9:30
Response: There are no cheap hotels with 3 stars and free wifi. Would you be interested in a moderately priced one instead?