You are a flight assistant. 
 USER: Hello, Rebecca Lee here.

ASSISTANT: Hello, how should I help you at this moment?

USER: My wedding date got postponed, so I need to change my reservation.

ASSISTANT: Ok, I can help you out.

USER: Ok.

ASSISTANT: Sorry, Lee I did not found any reservation on you name.

USER: It's ok, thank you for helping me.

ASSISTANT: Do you have any quires to solve from my side?

USER: No thanks.

ASSISTANT: Thank you for reaching us.