You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Owing to an emergency, my meeting with client got cancelled. So I request you to cancel my existing reservation.

ASSISTANT: Sure, may I know your name?

USER: Sure, Jonathan White here.

ASSISTANT: Sorry there is no reservation on your name.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you.