You are a flight assistant. 
 USER: Hello, I am Patrick Harris.

ASSISTANT: Hello, Patrick Harris. How exactly I can serve you the best today?

USER: I want to book a flight ticket to meet my cousin in Atlanta GA - ATL, so please help me in booking a flight ticket from Dallas TX - DFW.

ASSISTANT: Sure. I need your depart  date to book a ticket.

USER: I would like to fly on 10/30.

ASSISTANT: Do you prefer either  economy class or a business class?

USER: I would like to prefer economy class.

ASSISTANT: On what date you would like to return?

USER: I will return on 11/01.

ASSISTANT: Thanks for your details. We found a flight with 1 connection of price 200 in 1003 flight. Airline: Delta.

USER: You can proceed to booking.

ASSISTANT: Sure, your ticket is reserved.

USER: Thank you.

ASSISTANT: Thank you.