You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I would like to cancel my reservation as I got hospitalised, can you please help me out?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: Brenda Baker here.

ASSISTANT: Ok, please be on hold.

USER: Sure.

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

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for choosing us.