You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Justin Thompson. I am planning to cancel my recent reservation, due to health issue. Can you please cancel my reservation?

ASSISTANT: Sure, I am here to help you to cancel your reservation, please wait for a minute.

USER: Sure.

ASSISTANT: Thanks for your waiting. Sorry to tell you that, there is no active reservation found with your name in our database to cancel it.

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

ASSISTANT: My pleasure.