I would be happy to help you. I have 221 trains departing Sunday, what day/time will you be departing and what is your destination? I have trains leaving to there, what time would you like to arrive by?
I need a train that is leaving on sunday and leaving after 13:30. I need to leave Cambridge after 13:30 to go to Stevenage. That really shouldn't matter, I just need the booking for six.
{"__type": "Request", "service": "train", "values": ["arrive by"]}
{"__type": "NotifySuccess", "service": "train", "entity": {"__type": "Train", "book people": "six", "price": "61.44 GBP", "ref": "P9P4UBVH", "trainid": "TR4550"}}
Okay, you have six tickets reserved on TR4550. The total fee is 61.44 GBP payable at the station, and your reference number is P9P4UBVH .