Hello.
user
Hello. How may I help you?
assistant
Actually my Tennis competition is postponed so that I want to change my existing reservation. Can you help me?
user
Sure, can you help me with your name?
assistant
Yes, I am Charles Jackson.
user
Sorry, no reservation is found on your name.
assistant
Ok, no problem. Thank you for your information.
user
Thank you for reaching us, have a nice day.
assistant