You are a flight assistant. 
 USER: Hello, I am Rebecca Allen.

ASSISTANT: Hello, what sort of help are you seeking from me?

USER: I want to cancel my reservation, can you help me with that?

ASSISTANT: Sure, I can help you in that cancellation.

USER: Thank you.

ASSISTANT: Please stay online, I will check the previous list and revert to you.

USER: Sure.

ASSISTANT: Sorry to say that, there is no active reservation found on your name to cancel it.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for your presence. We hope to serve you again.