You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you for the day?

USER: I want to change my existing reservation, my music concert got postponed. Can you please help me out with that?

ASSISTANT: Sure, we are here to help you.

USER: Thank you for accepting my request.

ASSISTANT: May I know your good name to check your reservation status?

USER: I have reserved it on the name of Betty Jackson.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: Sorry, we did not find any reservation on your name.

USER: Oh! No issues, I think I have done a wrong reservation. Thank you for checking.

ASSISTANT: Thank  you for choosing us with a query.

USER: Welcome.