You are a flight assistant. 
 USER: Hello, I am Paul Brown.

ASSISTANT: Hello, Paul Brown. What can I do for you?

USER: Due to some weather conditions my meeting has been postponed.

ASSISTANT: Ok.

USER: I want to change my existing reservation.

ASSISTANT: Sure. Please standby.

USER: Can you please help me with it?

ASSISTANT: Thanks for your time. We found that there was no reservation on your name.

USER: Thanks for your information.

ASSISTANT: Thanks for reaching us.