i need a train to kings lynn . friday please . from cambridge leaving after 17:00 can you give me the train id on that 1 please ?
what day would you be wanting to travel ? the earliest train leaving after 17:00 on friday leaves at 17:11 . would you like me to book this train for you ?
{'service': 'train', 'act': 'inform', 'slot_name': 'id', 'value': 'tr9226'}
that would be tr9226