You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Rebecca Robinson here. I have a business meeting in New York-JFK, so I want to book a ticket from Atlanta-ATL.

ASSISTANT: Ok, can I know your travelling dates of this trip?

USER: My departure date is on 02/20 and return date is on 02/22.

ASSISTANT: Hold on for a second.

USER: Sure.

ASSISTANT: I will get back to you.

USER: Ok.

ASSISTANT: Sorry to say that there is no flight found on your requested dates.

USER: That's ok, I will check for other alternatives.

ASSISTANT: Thank you for reaching us.

USER: Anyway, thanks for your help.