hi , i want to travel to cambridge by train . i want to arrive by 17:30 . i am leaving from broxbourne on sunday .
great , what time do you have in mind ? and where are you leaving from ?
{'service': 'train', 'act': 'inform', 'slot_name': 'dest', 'value': 'cambridge'} {'service': 'train', 'act': 'inform', 'slot_name': 'leave', 'value': '05:32'} {'service': 'train', 'act': 'inform', 'slot_name': 'day', 'value': 'sunday '} {'service': 'train', 'act': 'inform', 'slot_name': 'depart', 'value': 'broxbourne '} {'service': 'train', 'act': 'offerbook', 'slot_name': 'none', 'value': 'none'} {'service': 'train', 'act': 'request', 'slot_name': 'leave', 'value': '?'}
the first train departs broxbourne for cambridge on sunday at 05:32 . do you want to purchase this ticket or pick a later departure time ?