You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Linda Parker here. Do you have any flight from DFW to ATL?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: My trip dates are 06/23 and 06/25.

ASSISTANT: Please wait for a moment.

USER: Sure.

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

USER: That's fine, thanks for your information.

ASSISTANT: Thank you for reaching us.