customer: Hello. 
 agent: Hello. How may I aid you? 
 customer: Can you please help me in booking a flight ticket from DCA to LAS? 
 agent: Sure. May I know your name please? 
 customer: Myself Donna Scott. 
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 customer: I would like to fly on Aug 07 and return on Aug 09. 
 agent: Are you looking for a stopover in your journey? 
 customer: Yes, I need a single connection. 
 agent: Any other preferences? 
 customer: No. 
 agent: Thanks for your patience. I have found united airlines which is a stopover flight. 
 customer: You can proceed to booking. 
 agent: Yes, I have confirmed your flight ticket in flight number 1014. 
 customer: Thank you. 
 agent: Thank you.
agent: Tell me your travel dates please?