You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I am planning to cancel my recent reservation, due to health issue. Can you please help me out?

ASSISTANT: Sure, I am here to help you. May I know your name?

USER: My name is Timothy Wilson.

ASSISTANT: There is no reservation found under your name to cancel.

USER: That's fine, thank you for your service.

ASSISTANT: Thank you for opting us.