You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Kevin Garcia. I am planning to cancel my recent reservation, due to health issue.

ASSISTANT: Sure, I am here to help you.

USER: Can you please cancel my ticket? Thank you.

ASSISTANT: Sure. Sorry Garcia, there is no reservation found as per your name to cancel it.

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

ASSISTANT: You are welcome.