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

ASSISTANT: Hello, what can I do for you now?

USER: As the meeting which I have scheduled to attend got postponed, I want to change my reservation. Can you please help me?

ASSISTANT: Sure, I can help you in that.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry to say that, there is no reservation found on your name.

USER: It's ok, thank you for your kind information.

ASSISTANT: Thanks for consulting us, have a great day.