yes i am looking for a train leaving cambridge on a thursday . i am heading to broxbourne , and i would like to leave after 13:45 . actually , i gave you the wrong day . i would like to travel on wednesday , from cambridge to broxbourne , and i would like to leave anytime after 12:45 .
tr8272 leaves at 05.00 your best bet is probably the tr9033 . it leaves cambridge at 14:01 . would you like a ticket ?
{'service': 'train', 'act': 'inform', 'slot_name': 'choice', 'value': '11'} {'service': 'train', 'act': 'request', 'slot_name': 'arrive', 'value': '?'}
no problem . i found 11 trains matching your request . what time would you like to arrive ?