i would like to take a train to cambridge that leaves on friday .
user
what departure site and what time ?
assistant
i am leaving from cambridge . anytime after 15:00 . i am actually going to peterborough .
user
do you have an arrival time in mind ?
assistant
i do not have a time to arrive by .
user
tr0112 leaves at 17:06 and will cost you 16.50 pounds . can we book ?
assistant
sure , that sounds good . i will have a party of 6 .