You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am looking for a booking agency to book my ticket, is it a booking office?

ASSISTANT: Yes, your at right place, I will help you.

USER: Ok, thanks.

ASSISTANT: How can I aid you today?

USER: I want to go Los Angeles for giving a seminar to students about nano satellite technology, can you please check is there any flight available from Atlanta?

ASSISTANT: Sure, I will definitely check. May I know your convenient airport code names for checking is there any flight available or not in that routes?

USER: Sure, my nearest region airport codes are ATL and LAX.

ASSISTANT: May I know your preferable dates for booking flight ticket?

USER: I would like to travel on 01/01 and return back from LAX on 01/03.

ASSISTANT: Ok, please wait a moment, I will check flight availability.

USER: Sure.

ASSISTANT: I found a flight ticket, airline is Delta and flight number is 1002. Shall I proceed?

USER: Yes, do proceed.

ASSISTANT: May I know your name for booking flight ticket?

USER: I am William Evans.

ASSISTANT: Ok. Your flight ticket is booked successfully.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for contacting us, have a nice day William.