i am looking for a train departing from broxbourne after 20:15 .
{'service': 'train', 'act': 'inform', 'slot_name': 'choice', 'value': '28'} {'service': 'train', 'act': 'inform', 'slot_name': 'depart', 'value': 'broxbourne '} {'service': 'train', 'act': 'inform', 'slot_name': 'dest', 'value': 'cambridge'} {'service': 'train', 'act': 'inform', 'slot_name': 'leave', 'value': '20:32'} {'service': 'train', 'act': 'inform', 'slot_name': 'leave', 'value': ' 23:32'} {'service': 'train', 'act': 'request', 'slot_name': 'day', 'value': '?'}
there are 28 available train rides from broxbourne to cambridge . the earliest leaves at 20:32 daily and the latest leaves at 23:32 . what day would you like to ride ?