customer: Hello. 
 agent: Hello. How can I assist you? 
 customer: I have to go Los Angeles for my film shooting purpose, can you please book a flight ticket from ORD airport? 
 agent: Can I know your travel dates? 
 customer: My departure date is 02/18 and please book my return ticket also on 02/20. 
 agent: Please mention your origin airport code? 
 customer: My destination airport is LAX. 
 agent: Can I know your name for booking the ticket? 
 customer: Sure, my name is Samantha Brown. 
 agent: The flight 1000 of Southwest airlines is available on your requested dates. Shall I proceed? 
 customer: Please confirm this flight ticket for me. 
 agent: Samantha, your reservation has done successfully. 
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 agent: You are welcome.
customer: Thank you for your help.