hi . i am looking for a train that goes to cambridge on saturday . can you help me ?
user
there are 5 trains departing from london kings cross station to cambridge on saturday . each will take 51 minutes . is there a specific time you would prefer to depart ?
assistant
i would like to leave after 12:00 .
user
there is a train leaving london kings cross for cambridge at 13:17 on saturday . would you like me to book it ?
assistant
yes , i will need to be on that train .