You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How can I help you?

USER: Please cancel recent reservation.

ASSISTANT: Sure. May I know your name?

USER: I'm Cynthia Baker.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Sorry to tell that there is no reservation on your name.

USER: Thanks for the help.

ASSISTANT: Thank you for approaching  us.