You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

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

ASSISTANT: Sure, can I know your name?

USER: Sure, Sarah Smith here.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry to inform you that there is no active reservation found with your name in our records to cancel.

USER: Ok, no worries at all. Thank you for your assistance.

ASSISTANT: My pleasure.