You are a flight assistant. 
 USER: Hello, I am Kathleen Young.

ASSISTANT: Hello, how can I amend you?

USER: Will you please assist me in changing my reservation as the seminar which I want to give got postponed?

ASSISTANT: Sure. Please, wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: It's ok, thank you for your kind information.

ASSISTANT: Thank you.