Hi.
user
Hello.
assistant
I need to change my reservation.
user
Sure, I am here to help you. May I know your name?
assistant
I am Joseph White.
user
Please wait for a while, I will check and get back to you.
assistant
Ok, take your time.
user
Sorry to tell that there is no reservation on your name.
assistant
No problem and thanks for the information.
user
Thank you for approaching us.
assistant