i need to book train tickets .
user
sure , where are you headed ?
assistant
i need a train that is headed to london kings cross and i need to arrive by 20:30 .
user
i can help with that . what day will you be travelling ?
assistant
i will be leaving saturday .
user
we have 8 trains to london kings cross that day . is there any particular time you would like to leave by ?
assistant
i would like to leave at 16:20
user
the tr8134 leaves at 17:00 . will that be okay ?
assistant
yes , that would be fine . i do not need tickets , i just need the travel time , price , and train id .