And what is your destination please?
I need a train from Cambridge leaving after 18:30 in the evening please. London liverpool street. I need the train for wednesday.
{"__type": "Request", "service": "train", "values": ["destination"]}
{"__type": "Inform", "entity": {"__type": "Train", "choice": "three"}} {"__type": "Confirm", "entity": {"__type": "Train", "leave at": "19:59", "trainid": "TR6037"}}
I have three trains matching your preferences. Would you like me to book TR6037 that leaves at 19:59?