You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I already book a flight ticket to visit New York for vacation but due to my bad health, I am unable to travel. Can you cancel my reservation?

ASSISTANT: Sure. May I know your name please?

USER: My name is Jason Anderson.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for waiting. Sorry to inform you that I have not found your flight reservation to cancel it.

USER: Ok, thank you for the information.

ASSISTANT: Thank you.