What day would you like to travel and which station do you wish to depart from?
Hi I'm looking for a train that will take me to Cambridge. I want to get there by 15:30. I am leaving from Stevenage and I would like to travel on Monday.
{"__type": "Request", "service": "train", "values": ["day", "departure"]}
{"__type": "Request", "service": "train", "values": ["leave at"]}
Very well. What time would you like to depart?