Hello.
user
Hello. How may I aid you?
assistant
Due to some problems my trip was cancelled so can you please cancel my flight ticket?
user
May I know your name?
assistant
Thank you for your response, my name is Brian Edwards.
user
 I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.
assistant
Oh! It's ok, no problem.
user
Thank you.
assistant
Thank you for your information.
user