i need a train departing cambridge arriving by 2030 . i need to go to kings lynn on wednesday and need to arrive before 20:30 .
which station are you traveling to , and on which day ?
{'service': 'train', 'act': 'inform', 'slot_name': 'choice', 'value': '5'} {'service': 'train', 'act': 'inform', 'slot_name': 'leave', 'value': '5:11'}
there are 5 trains . would you like to leave at 5:11 ?