Were you interested in arriving or departing from Cambridge, and on what day?
Hi. Can you help me find a train? I need to arrive in broxbourne. I need to leave cambridge after 16:15 on monday.
{"__type": "Request", "service": "train", "values": ["day", "departure", "destination"]}
{"__type": "Request", "service": "train", "values": ["leave at"]}
Is there a time you would like to leave by?