You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I need to cancel my recent reservation due to some health issues, can you help me in doing that?

ASSISTANT: Sure. May I know your name please?

USER: I am Anthony Williams.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: I have searched online but I could not find your flight reservation to cancel it. Thank you.

USER: Ok, no issues. Thank you for the information.