I am looking for a train departing from London Kings Cross.
I have 70 trains departing from that location, do you have any more information to narrow it down some?
Yes, I'd like to go to Cambridge on Tuesday, sometime after 13:15. 
Train TR3456 leaves London Kings Cross at 13:17 and arrives in Cambridge at 14:08. Would you like to book this train?
I think that will work. What is the ticket price and travel time for that train? 
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?
Yes, that sounds good.
Great, I have booked your ticket. Your reference number is : 3TF3UIGP.
Okay thank you for all your help.
You're quite welcome. Is there anything else I can assist you with today?
No, that's all I need today. I appreciate your help.
Have a wonderful day!