customer: Hello, I am Partick Lee. 
 agent: Hello Patrick Lee. How can I serve you? 
 customer: I want to book a flight ticket to Chicago as I want to go for science festival. 
 agent: Ok. 
 customer: Please help me with a connecting flight. 
 agent: Sure. May I know your airport codes? 
 customer: My source code is NY- JFK and Dest code is IL- ORD. 
 agent: Can you share your travelling dates? 
 customer: I want to fly on 07/27 and return on 07/29. 
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 customer: I need the ticket within price 200. 
 agent: There is a flight 1008 in Southwest airline and price is 100 with a connection. 
 customer: Please proceed. 
 agent: Ok, your ticket has been done. 
 customer: Thank you. 
 agent: Thank you.
agent: Do you have any preferences?