i am looking for aa train to cambridge that will depart after 16:45 i'll be leaving from leicester on sunday .
where will you be departing from ?
{'service': 'train', 'act': 'inform', 'slot_name': 'choice', 'value': '7'} {'service': 'train', 'act': 'inform', 'slot_name': 'leave', 'value': '17:09'} {'service': 'train', 'act': 'inform', 'slot_name': 'depart', 'value': 'leicaster'}
there are 7 trains leaving leicaster that fit your criteria . how does 17:09 sound ?