You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: I would like to cancel my reservation because I am not feeling well. Can you please help me out?

ASSISTANT: Sure, I can help you with that.

USER: Thank you.

ASSISTANT: May I know your name for checking your reservation to cancel it?

USER: Sure, my name is David Garcia.

ASSISTANT: Please wait a moment, let me check.

USER: Sure.

ASSISTANT: I found your reservation successfully, would you like me to cancel it?

USER: Sure, you can cancel.

ASSISTANT: Ok, your reservation is cancelled.

USER: Thank you very much.

ASSISTANT: Welcome, hoping that you will recover soon.