generate response: Thanks! I need to travel to Kings Lynn from Cambridge for 3 people. I need to travel Tuesday night, sometime after 20:00. I need a reference number please.. Intent: find_train. Slots: train-day=tuesday, train-departure=cambridge, train-destination=kings lynn, train-leaveat=20:00
Response: I would suggest train TR8387 that leaves at 21:11 with arrival at 21:58. Would you like me to book this one or do you need a different arrival time?