You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best I can serve you at this moment?

USER: I am planning to visit a Lady Bird Lake in Austin, so please book a flight ticket from DCA to AUS.

ASSISTANT: Sure, can you please forward your journey dates?

USER: I will start on Feb 28, return on Mar 01.

ASSISTANT: May I know your name please?

USER: My name is Stephanie Moore.

ASSISTANT: Please let me know your connection limit.

USER: I need a single connecting flight.

ASSISTANT: Do you have any more specifications in your journey?

USER: No.

ASSISTANT: Sorry to inform you that, we did not find any flights matching your essentials.

USER: No problem, thank you.

ASSISTANT: Thank you for approaching us.