You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Rebecca Brown. I want to cancel my reservation due to sudden change of weather my meeting got postponed.

ASSISTANT: Ok.

USER: Can you cancel my reservation please?

ASSISTANT: Sure, I am glad to help you.

USER: Thank you.

ASSISTANT: Please wait for a while, I will check your reservation.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no reservation found on your name.

USER: Thank you for informing me.

ASSISTANT: Thank you for approaching us.