generate response: I need to get to Cambridge by 09:00 on Sunday. I'll be leaving from Stevenage.. Intent: find_train. Slots: restaurant-area=west, restaurant-bookday=sunday, restaurant-bookpeople=5, restaurant-booktime=18:00, restaurant-name=graffiti, restaurant-pricerange=expensive, train-arriveby=09:00, train-day=sunday, train-departure=stevenage, train-destination=cambridge
Response: how about TR1542? it leaves at 05:54