You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I want to cancel my recent reservation due to health issues, can you please help me with that?

ASSISTANT: Sure, may I know your name?

USER: My name is Brian Wilson.

ASSISTANT: Ok, please wait for sometime.

USER: Sure.

ASSISTANT: Thanks for waiting, we found reservation on your name and it has been cancelled successfully.

USER: Thank you.

ASSISTANT: Thank you for reaching us.