You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I want to cancel my recent reservation owing to an emergency.

ASSISTANT: May I know your name please?

USER: I am Jason Campbell.

ASSISTANT: Ok, please wait for a mean while.

USER: Sure.

ASSISTANT: Sorry Jason, there is no active reservation found on your name to cancel it.

USER: No problem, thank you for checking.

ASSISTANT: You are welcome.