You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Laura Thomas.

ASSISTANT: How may I help you today?

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, we are gleeful to help you.

USER: Thank you.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Thanks for waiting, we did not find any active reservation on your name.

USER: That's Fine. Thank you.

ASSISTANT: Thank you for choosing us.