You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Carol Harris.

ASSISTANT: How can I support you?

USER: Will you be my helping hand in cancelling my reservation as my plan to attend a seminar got cancelled?

ASSISTANT: Sure, wait a moment.

USER: Sure.

ASSISTANT: Thanks for being patience, we do not found any reservation on your name.

USER: It's ok, not an issue. Thank you for the information.

ASSISTANT: Thanks for using our service.