You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am George Baker.

ASSISTANT: How can I help you?

USER: 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 will help you.

USER: Thank you.

ASSISTANT: Please, wait a minute.

USER: Ok.

ASSISTANT: Thank you for waiting, I did not find any reservation on your name to cancel.

USER: That's Fine. Thanks for the information.

ASSISTANT: Thank you for reaching us.