You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Amy Clark. Owing to an emergency, I want to cancel my recent reservation.

ASSISTANT: Sure, please wait for a while.

USER: Ok.

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

USER: No problem, thank you.

ASSISTANT: My pleasure.