You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I just want to cancel my recently done reservation, because of my health problem I have cancelled my business meeting.

ASSISTANT: May I know your name?

USER: Can you please help me?

ASSISTANT: Sure, I will help you.

USER: Sure, I'm Ryan Moore here.

ASSISTANT: Sorry Ryan, there is no reservation found with your name.

USER: Thank you for your service in providing information.

ASSISTANT: You are welcome.