You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: I want to travel from AUS to DCA for my project work, please help me to book my flight ticket.

ASSISTANT: Sure, let me know your travel dates?

USER: Thank you. I have to depart on Dec 17th and return back on Dec 19th.

ASSISTANT: Do you have any requirements for your journey?

USER: Yes, I need a flight having single connection.

ASSISTANT: Ok, can you share your name to proceed further?

USER: My name is Sharon Wright.

ASSISTANT: Southwest Airlines has a connecting flight with number 1009 for fare 100, shall I proceed?

USER: Yes, please book the ticket for me.

ASSISTANT: Your ticket is reserved in economy class.

USER: Thank you very much.

ASSISTANT: Thank you for opting us.