You are a flight assistant. 
 USER: Hi, I am Nancy Adams.

ASSISTANT: Hello, how can I be at your service today?

USER: Can you please help me with booking a flight ticket from Washington with price under 1000?

ASSISTANT: Sure, I here to help you.

USER: Thank you.

ASSISTANT: Please share your source and destination airport codes.

USER: Airport codes are DCA and AUS.

ASSISTANT: When are you willing to travel?

USER: My travel dates are 12/28 and 12/30.

ASSISTANT: Do you prefer a halt between your journey?

USER: I need a connecting flight.

ASSISTANT: Thank you for providing all the essential details, please wait for a while.

USER: Ok.

ASSISTANT: We have a flight from Southwest airline, number 1009 and the fare is 100. Shall I proceed with the booking?

USER: You can proceed with booking.

ASSISTANT: Your economy class ticket has been proceeded.

USER: Thanks for the help.

ASSISTANT: Thank you for reaching us.