i am looking for a train departing from london kings cross .
user
i have 70 trains departing from that location , do you have any more information to narrow it down some ?
assistant
yes , i would like to go to cambridge on tuesday , sometime after 13:15 .
user
train tr3456 leaves london kings cross at 13:17 and arrives in cambridge at 14:08 . would you like to book this train ?
assistant
i think that will work . what is the ticket price and travel time for that train ?
user
the ticket price is 23.60 pounds . travel time on this route is 51 minutes . would you like me to arrange a booking on this train ?
assistant
yes , that sounds good .