You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I want to visit my uncle's place at Washington-DC, please book my flight ticket from AUS to DCA.

ASSISTANT: Can I know your travelling dates?

USER: I will depart on Jan 30th and return back on Feb 1st.

ASSISTANT: Please let me know your connection limit?

USER: I just need a flight with single connection.

ASSISTANT: May I know your name please?

USER: My name is Robert Williams.

ASSISTANT: Here is a connecting flight with fare 100 and 1009 as flight number in Delta Airline. Shall I proceed with booking?

USER: Yes, you can proceed for booking the ticket.

ASSISTANT: Your ticket is confirmed.

USER: Thank you very much.

ASSISTANT: Thank you for reaching us.