You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Margaret Allen here. Can you please book a connecting flight from DCA to AUS?

ASSISTANT: Sure, can you please share me with your dates of travel?

USER: Sure, my planned dates are from 12/27 to 12/29.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: There is a flight with the connecting flight of fare 200 and the airline is naming as UA, are you ok with this booking?

USER: Ok, please proceed with booking.

ASSISTANT: Ok, your reservation has been confirmed with the flight number 1016.

USER: Thank you for your service.

ASSISTANT: You are welcome always.