You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Owing to an emergency, I want to cancel my reservation, so please help me in the cancellation.

ASSISTANT: Sure, may I know your name to check with the details.

USER: Myself Ronald Young.

ASSISTANT: Please wait a moment.

USER: Ok.

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

USER: Not an issue. Thank you.

ASSISTANT: Thank you for reaching our service.