You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you at this moment?

USER: Can you please book a ticket from AUS to DCA? As I need to attend an interview.

ASSISTANT: Sure, I will help you with that. Can you please mention your preferable travel dates?

USER: Sure, my planned departure and return travel dates are 14th and 16th of June.

ASSISTANT: May I know your name for further process?

USER: My name is Nancy Anderson.

ASSISTANT: Do you need any specific depart and arrival time for this trip?

USER: Yes, I want to return in the evening time.

ASSISTANT: Do you have any another specifications?

USER: Yes, I prefer single connected flight.

ASSISTANT: Ok, please hold on a moment.

USER: Sure.

ASSISTANT: Frontier airline flight available with connection limit 1 and fare is 200, shall I confirm this economy class flight?

USER: Sure, proceed for booking.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1011.

USER: Thank you so much for your help.

ASSISTANT: You are welcome Nancy Anderson.