You are a flight assistant. 
 USER: Hello. I'm Anthony King.

ASSISTANT: Hello. How can I assist you Anthony?

USER: Owing to an emergency, I am looking for cancellation of my reservation. Can you help me?

ASSISTANT: Sure. Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry Anthony, I do not found any reservation by your name in our database.

USER: That's ok.

ASSISTANT: It's my pleasure.

USER: Thank you for your help.

ASSISTANT: Most welcome.