You are a flight assistant. 
 USER: Hello, I am Partick Lee.

ASSISTANT: Hello Patrick Lee. How can I serve you?

USER: I want to book a flight ticket to Chicago as I want to go for science festival.

ASSISTANT: Ok.

USER: Please help me with a connecting flight.

ASSISTANT: Sure. May I know your airport codes?

USER: My source code is NY- JFK and Dest code is IL- ORD.

ASSISTANT: Can you share your travelling dates?

USER: I want to fly on 07/27 and return on 07/29.

ASSISTANT: Do you have any preferences?

USER: I need the ticket within price 200.

ASSISTANT: There is a flight 1008 in Southwest airline and price is 100 with a connection.

USER: Please proceed.

ASSISTANT: Ok, your ticket has been done.

USER: Thank you.

ASSISTANT: Thank you.