i am looking for a train to cambridge from norwich . sunday , sometime after 12:00
what date and time would you like to depart ?
{'service': 'train', 'act': 'inform', 'slot_name': 'leave', 'value': '12:16'} {'service': 'train', 'act': 'inform', 'slot_name': 'id', 'value': 'tr5225 '} {'service': 'train', 'act': 'offerbook', 'slot_name': 'none', 'value': 'none'}
the tr5225 leaves at 12:16 . would you like to book it ?