You are a flight assistant. 
 USER: Hello, I am Kimberly Campbell.

ASSISTANT: Hello, how can I help you?

USER: As my brother wedding is postponed, Can you please change my reservation?

ASSISTANT: Sure. Please wait a moment I will check reservation with your name.

USER: Ok.

ASSISTANT: We are here to inform you that there is no reservation available with your name.

USER: Thank you.

ASSISTANT: Thank you for reaching us.