can you help me find a train to cambridge ?
user
i sure can ! where are you departing from ?
assistant
i need to leave kings lynn on tuesday after 15:15 .
user
we have 8 trains leaving for cambridge that day after 15:15 . is there any time you prefer ?
assistant
no , as long as it s after 15:15 . what times are available ?
user
trains leave at the following times: 16:11 , 17:11 , 18:11 , 19:11 , 20:11 , 21:11 , 22:11 , and 23:11 . which would you prefer ?
assistant
the 16:11 train would be fine . i'll need the booking for 4 people . can i also have the reference number please ?