Hello.
user
Hello. How may I help you?
assistant
I Would like to cancel my recent reservation due to some personal issues, will you help me with that?
user
Sure. May I know your name please?
assistant
Thank you for accepting my request, myself  William Williams.
user
Wait for a moment please. Sorry William.
assistant
Sure, I will wait. Ok, not an issue.
user
I could not find your flight reservation to cancel it.
assistant
Thank you for your information.
user
Thank you.
assistant