You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I amend you?

USER: Please cancel my recent reservation.

ASSISTANT: Sure. May I know your name?

USER: I am Anna Davis.

ASSISTANT: Please, wait for a while.

USER: Sure.

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

USER: Thanks.

ASSISTANT: Thank you.