Hi.
user
Hello. How may I aid you?
assistant
Due to some urgent business meeting, I am planning to cancel my reservation. Can you please help me for this?
user
May I know your name?
assistant
Check under the name Nicholas Lewis.
user
 I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.
assistant
That's ok, thank you.
user
Thank you.
assistant