You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I am Sharon Wilson. I am planning to cancel my recent reservation, due to health issue. Can you please cancel my ticket?

ASSISTANT: Sure, let me check the current status and revert you.

USER: Sure.

ASSISTANT: There is no reservation found by the name you shared.

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

ASSISTANT: Thank you for reaching us.