I've got the system ready for you, where will you be leaving from and arriving to?
Find me a train on thursday that should arrive by 15:30. I'll be departing from kings lynn and going to cambridge
{"__type": "Request", "service": "train", "values": ["departure", "destination"]}
{"__type": "Inform", "entity": {"__type": "Train", "arrive by": "14:58", "departure": "Kings Lynn", "destination": "Cambridge", "leave at": "14:11"}} {"__type": "Confirm", "entity": {"__type": "Train"}}
The TR2162 departs from Kings Lynn at 14:11 and arrives at Cambridge at 14:58. Shall I book that for you?