You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Can you make my reservation from ORD o CLT?

ASSISTANT: Sure, I will help you with that.

USER: Thanks.

ASSISTANT: Can I have your travel dates please?

USER: My travelling dates are from 08/22 to 08/24.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that no flight is available to you on your dates.

USER: It's ok. Thank you for your time.

ASSISTANT: May I know your name please for documentation purpose?

USER: Myself Brian Allen.

ASSISTANT: Thank you for choosing us, have a good day.

USER: Welcome.