i need a train leaving on saturday . i am leaving from cambridge . i am leaving leicester and coming to cambridge . i would like to arrive by 20:15 so whenever i need to leave to get there on time is fine .
where are you traveling from ? and where were you wanting to travel to ? what time are you leaving ?
{'service': 'train', 'act': 'inform', 'slot_name': 'arrive', 'value': '19:54'} {'service': 'train', 'act': 'inform', 'slot_name': 'id', 'value': 'tr2515 '} {'service': 'train', 'act': 'offerbook', 'slot_name': 'none', 'value': 'none'}
tr2515 can get you there by 19:54 would you like me to book you ?