You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I need your assistance in booking my flight ticket from Dallas, as I want to attend the annual day of our college which is located in IAD.

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

USER: My trip dates will be Aug 30th to Sep 1st.

ASSISTANT: May I know your source airport code please?

USER: I want to start from a best international airport of Dallas DFW.

ASSISTANT: May I know your another requirements please?

USER: I prefer a connecting flight usually because I need to buy a dress for the annual day.

ASSISTANT: Please wait for a mean while.

USER: Sure.

ASSISTANT: I found a connecting flight of fare 100 with the UA airline, shall I proceed with this ticket booking?

USER: Its a perfect flight, you can proceed.

ASSISTANT: Ok, I have reserved your ticket with the flight number 1010, your depart time is at 4:00 hours and return will be at 1:00 hours.

USER: Thank you so much for your excellent service.

ASSISTANT: May I know your name please?

USER: I am Nicholas Phillips.

ASSISTANT: Thank you for reaching us.