customer: Hello. 
 agent: Hello, how may I help you? 
 customer: I want to meet my friend at LAS. Can you please make a reservation from IAD? 
 agent: Sure, let me know your trip dates please? 
 customer: Sure, I want to start my journey on June 25 and intend to return on June 27. 
 agent: May I know your connection limit? 
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 agent: Do you need any other preference? 
 customer: No. 
 agent: Can I know your name please? 
 customer: I am Nicole Miller. 
 agent: Sorry to inform you that there are no flight services available on your given details. 
 customer: Ok, not an issue. Thank you for the information. 
 agent: Thanks for contacting us.
customer: I am looking for a flight with single connection.