Hi.
user
Hello, how can I help you?
assistant
Due to postponement  of my Visa processing, I want to cancel my recent reservation.
user
Sure, may I know your name please?
assistant
My name is Brandon Lee.
user
Please wait for a while, I will check and get back to you.
assistant
Sure.
user
We have not found any flight reservation on your given name.
assistant
Ok.
user
Thanks for choosing us.
assistant
Thank you for your information.
user