customer: Hello, I am Michelle Turner. 
 agent: Hello, How can I help you? 
 customer: I want to attend cultural event in IL - ORD. Help me with booking. 
 agent: Sure, May I know the source and travelling dates? 
 customer: My origin is CA - LAX, my depart is on 02/19 and return on 02/21 with single connection and price limit 5000. 
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 customer: Ok, thank you, for the information.
agent: Sorry to tell that there is no flights found on your request. Thank you for contacting us.