You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?.

USER: I am Justin Anderson. I am planning to cancel my recent reservation, due to heath issue. Can you please cancel my ticket?

ASSISTANT: Sure,  Justin Anderson, I will help you with that cancellation.

USER: Thank you.

ASSISTANT: Sorry to tell you, there is no reservation found under your name in our database.

USER: That's fine. Thank you for your service.

ASSISTANT:  Justin Anderson, thank you approaching us. Have a nice day.