customer: Hello. 
 agent: Hello, how may I assist you today? 
 customer: I am looking to reserve a flight ticket to reach Las Vegas, can you please find a flight with the connection limit 1? 
 agent: Sure, may I know your airport codes please? 
 customer: The preferred airport codes are DFW and LAS. 
 agent: Thank you, may I know your planned travel dates? 
 customer: The scheduled travel dates are Dec 19 and Dec 21. 
 agent: Do you have any class preference? 
 customer: I need a business class flight to reach my destination. 
 agent: May I know your name for booking purpose? 
 customer: My name is Timothy Collins. 
 agent: Do you want any another specifications? 
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 agent: Unfortunately, no flights available on your requirements. 
 customer: It's ok, not a problem with that. Anyways thank you for your time. 
 agent: Welcome, thank you for reaching us.
customer: No, I have mentioned all my specifications.