hi , i am looking for a train that will be leaving after 19:30 that goes to kings lynn . i'll be leaving from cambridge on friday .
where are you departing from ?
{'service': 'train', 'act': 'inform', 'slot_name': 'day', 'value': 'that day'} {'service': 'train', 'act': 'inform', 'slot_name': 'choice', 'value': 'four'} {'service': 'train', 'act': 'request', 'slot_name': 'arrive', 'value': '?'}
i have 4 available trains that day ? is there a certain time that you would like to arrive by to your destination ?