i am trying to find a train that departs from london kings cross on thursday . can you help me book a ticket ?
user
sure , are you coming to cambridge ? what time would you like to depart ?
assistant
any time that lets me arrive by 08:45 .
user
the tr4016 from london kings cross to cambridge , traveling on thursday , leaves at 07:17 and arrives at 8:08 . should i book it for you ?
assistant
yes can you please book that for 8 people and give me the reference number ?