You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Can you help me to book flight ticket from AUS  to ATL?

ASSISTANT: Sure, let me know your planned travel dates?

USER: My trip dates are Oct 3 and Oct 5.

ASSISTANT: Ok, do you have any requirements you need for your journey?

USER: I need a direct flight.

ASSISTANT: May I know your name please?

USER: Richard Walker here.

ASSISTANT: Sorry, no flights found as per your request.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for contacting us.