Hello.
user
Hello, how may I support you at present?
assistant
I want to change my reservation due to postponed of my exam, so please assist me in changing.
user
Sure, we are glad to help you to change it.
assistant
Thank you for accepting my request.
user
Let me know your name, to check with your previous reservation.
assistant
Sure, my name is Linda Nelson.
user
Ok, please wait for a moment.
assistant
Sure.
user
Thanks for your time, we did not find any reservation on your specified name to change it.
assistant
No issues, thank you.
user
Thank you for reaching our service.
assistant