You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Melissa Johnson, I need to book a direct flight for my journey to AUS from ATL. Can you please help me out?

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

USER: Thank you for reacting positively, my travel dates are 03/09 and 03/11.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry for the inconvenience, there is no flight available on your requested dates.

USER: Not a problem, anyway thank you for the information.

ASSISTANT: Thank you for approaching us.