i am looking for a train that leaves sunday and heading to london liverpool street . depart time does not matter but i need it to arrive at 18:00 .
wonderful , i can help you . what time on sunday would you like to depart ?
{'service': 'train', 'act': 'inform', 'slot_name': 'arrive', 'value': '15:27'} {'service': 'train', 'act': 'inform', 'slot_name': 'id', 'value': 'tr2141'} {'service': 'train', 'act': 'offerbook', 'slot_name': 'none', 'value': 'none'}
the tr2141 arrives by 15:27 . would you like me to reserve some seats for you ?