You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

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

ASSISTANT: Sure, may I know your good name?

USER: Helen Rodriguez.

ASSISTANT: Is there any connection limit?

USER: I need direct flight.

ASSISTANT: Could you please help me with your journey dates?

USER: Mar, 25 and Mar, 27 are my journey dates.

ASSISTANT: Do you have any other specifications?

USER: No, thanks.

ASSISTANT: Sorry, there are no flights available as per your requirements.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you for choosing us.