You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

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

ASSISTANT: Sure, may I know your name?

USER: Myself Benjamin Adams.

ASSISTANT: Give me a minute.

USER: Sure.

ASSISTANT: On your request, we have successfully cancelled your reservation.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.