You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Karen 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. Please wait for a while.

USER: Thank you. Ok.

ASSISTANT: Thanks for your time, there is no active reservation found in your name.

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

ASSISTANT: Thank you for opting us.