customer: Hello,. 
 agent: Hello, how may I assist you? 
 customer: I need to book a flight ticket to TX-DFW with a direct flight, so can you please help me out with this? 
 agent: Sure, may I know your journey dates? 
 customer: I want to start on 02/06 and return on 02/08. 
 agent: Can you share your origin airport code? 
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 agent: May I know your good name for further process? 
 customer: My name is John Baker. 
 agent: No flights found on your journey dates. 
 customer: Not a problem, thank you. 
 agent: Thank you for choosing us, have a nice day.
customer: My origin is Las Vegas, LAS.