You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Owing to an emergency, my business conference got cancelled. So I had a request to you to cancel my existing reservation?

ASSISTANT: Can I know your name?

USER: Sure, I had a earlier reservation with name Brandon Parker.

ASSISTANT: Please wait for a while, I will check and revert to you.

USER: Sure.

ASSISTANT: There is no reservation found on your name.

USER: Ok, no worries at all.

ASSISTANT: Thank you for approaching us.

USER: I appreciate your quality customer service.