You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: Please cancel my recent reservation owing to an emergency.

ASSISTANT: May I know your name for cancellation.

USER: My name is Michael Green.

ASSISTANT: Please hold a moment.

USER: Sure.

ASSISTANT: Sorry Michael Green, there are no active reservations on your given name to cancel.

USER: Thanks.

ASSISTANT: Thank you for reaching us.