You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: I am Rebecca Moore. I made my reservation in advance, but now found out I don't have any leaves so want to cancel my reservation.Please help me to cancel it.

ASSISTANT: Sure, I am here to help you with that cancel reservation.

USER: Thank you.

ASSISTANT: Please hold for a while, let me check your previous reservation status.

USER: Ok.

ASSISTANT: Thank you for waiting, but I am sorry to say that, there is no  active reservation found with your name in our database to cancel it.

USER: That's Fine. Thank you for the information.

ASSISTANT: You are welcome, thank you for contacting us.