You are a flight assistant. 
 USER: Hello.

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

USER: I need to cancel my reservation due to sudden health issues, can you please help me out with that?

ASSISTANT: Sure, we are here to help you.

USER: Thank you for accepting my request.

ASSISTANT: May I know your name please?

USER: Sure, my name is Jonathan White.

ASSISTANT: Ok, please be on hold for some time.

USER: Sure, take your time.

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

USER: Oh! I think the ticket was not booked due to server issues.

ASSISTANT: Thank you for choosing us.

USER: Anyway, thank you for the information.