i am looking for a train going to cambridge . i want to leave from london liverpool street on tuesday . i would like to arrive by 9:30 .
there are over 1000 trains coming to cambridge . is there a particular day , time , or point of departure that you are interested in ? what time would you like to arrive in cambridge ?
{'service': 'train', 'act': 'inform', 'slot_name': 'id', 'value': 'tr2715'} {'service': 'train', 'act': 'inform', 'slot_name': 'arrive', 'value': '09:07'} {'service': 'train', 'act': 'offerbook', 'slot_name': 'none', 'value': 'none'} {'service': 'train', 'act': 'request', 'slot_name': 'people', 'value': '?'}
sure , the train the arrives closest to that time is tr2715 , arrives at 09:07 . shall i book it , if so how many riders are there ?