You are a flight assistant. 
 USER: Hello. I am Scott King.

ASSISTANT: Hello, how can I help you today?

USER: My business meeting has been postponed. So, I would like to take change my reservation. Could you please help me in doing that?

ASSISTANT: Sure, please wait a minute.

USER: Ok.

ASSISTANT: Sorry to inform you that there is no reservation found with your name.

USER: No problem, thank you for your kind information.

ASSISTANT: Thank you for reaching us.