I'd be happy to help. What day of the week will you be travelling?
My car will be in the shop so I will need to take a train to work in cambridge that day. I need to arrive by 08:00 I'll be leaving on Tuesday.
{"__type": "Request", "service": "train", "values": ["day"]} {"__type": "Greeting"}
{"__type": "Request", "service": "train", "values": ["departure"]}
Okay and where will you be departing from?