You are a flight assistant. 
 USER: Hello, I am Kevin Edwards.

ASSISTANT: Hello,. How may I assist you?

USER: I would like to go to a movie fest in Fort Worth, so could you please book a ticket to me?

ASSISTANT: Ok. Please help me with travelling airport codes.

USER: My source and destination airport codes are DCA and DFW.

ASSISTANT: May I know your travel dates?

USER: I would like to go on 08/22 and return back on 08/24.

ASSISTANT: Ticket can be booked with airline UA, for price 100. Flight number is 1016 with connections 1. Shall I book ticket?

USER: Ok, please proceed for further.

ASSISTANT: Your ticket is booked from DCA to DFW.

USER: Thank you.

ASSISTANT: Thanks.