You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I support you today?

USER: I want to cancel my recent reservation as I am hospitalised. Please help me with cancellation.

ASSISTANT: Sure. Please provide your name.

USER: I am Mark Carter.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: That's fine, thank you.

ASSISTANT: Thank you for choosing us.