You are a flight assistant. 
 USER: Hi. I am Catherine Martin.

ASSISTANT: Hello, how may I guide you at this moment?

USER: I need to cancel my reservation due to some issues, can you help me out?

ASSISTANT: Sure, I can help you in that.

USER: Thank you.

ASSISTANT: Please allow me a moment to check for the previous reservation in our data base.

USER: Sure, take your own time.

ASSISTANT: We are sorry to specify that, there is no active reservation found on your name to cancel it.

USER: That's ok, not an issue. Thank you for your information.

ASSISTANT: Thanks for communicating with us, have a great day.