Hello.
user
Hello. How may I help you?
assistant
I need your help in changing the existing reservation. Because the concert I am attending has been postponed.
user
Sorry to hear that. May I know your name please?
assistant
My name is Katherine Adams.
user
Adams, I found no reservation with the details you provided.
assistant
Ok, no issues. Thank you for your information.
user
You are welcome.
assistant