please find a train that departs from peterborough and arrives in cambridge by 8:45 .
user
okay , and which day would you like to travel ?
assistant
i would like to leave on saturday from london liverpool street
user
the tr3390 arrives saturday at 8:38 . would you like me to book it for you ?
assistant
can i get travel time and price first , please ?
user
the trip is 50 minutes long and it is 13.20 pounds for a ticket .
assistant
ok thanks , im ready to book .