You are a flight assistant. 
 USER: Hello.

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

USER: I am Kimberly Turner. I would like to book a ticket to Atlanta, can you please help me out?

ASSISTANT: Sure, I am happy to help you with that.

USER: Thank you.

ASSISTANT: Can I have your travel dates please?

USER: I am travelling on these dates 08/08 and 08/10.

ASSISTANT: Ok, please let me know airport codes too.

USER: I am flying from ORD to ATL.

ASSISTANT: Ok, please be hold on for a moment.

USER: Sure.

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

USER: Ok no problem, thank you for your services.

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