You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Will you please help me to book a flight ticket from ORD to AUS?

ASSISTANT: Sure, could you please share your journey dates?

USER: I will start on Oct, 13 and return on Oct, 15.

ASSISTANT: Is there any connection limit?

USER: I need direct flight.

ASSISTANT: Do you have any other specifications?

USER: No, thank you.

ASSISTANT: May I know your good name to proceed further?

USER: Carol Robinson here.

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

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

ASSISTANT: Thank you for choosing us.