You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How may I assist you?

USER: I need to go for shopping at Washington, DC-IAD, can you help me with booking flight ticket?

ASSISTANT: Please provide your journey dates?

USER: Sure, I would like to travel on 09/27 and return on 09/29.

ASSISTANT: Please specify your departure code?

USER: My source code is CA-LAX.

ASSISTANT: Flight ticket can be booked with airline UA, price 200. Connections 1, flight number 1014.

USER: Please don't proceed with this booking as I need a direct flight.

ASSISTANT: Please provide your name?

USER: Yes, my name is Elizabeth Phillips.

ASSISTANT: Thanks.