You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your name please?

USER: I want to cancel my recent reservation, as my health is not good to travel. Can you please help me with this?

ASSISTANT: Ok, I can help you with that. To check your reservation, I need your name. Please provide your name?

USER: I am Stephen Young.

ASSISTANT: Sorry, we did not find any reservation on your name to cancel.

USER: Ok, no problem.

ASSISTANT: Thanks for contacting us, have a nice day.

USER: Thank you for your information.