We have several trains going to cambridge. Where are you coming from? Do you have any time constraints?
I would like to see if you can find a train that leaves to cambridge. Also, can it be on a thursday too? I'll be leaving from the birmingham new street station. I need to arrive in Cambridge by 15:15 please.
{"__type": "Request", "service": "train", "values": ["arrive by", "leave at"]}
{"__type": "Inform", "entity": {"__type": "Train", "arrive by": "12:23", "trainid": "TR6105"}} {"__type": "Confirm", "entity": {"__type": "Train"}}
TR6105 arrives by 12:23. Would you like some seats?