customer: Hi, I am Charles Green. 
 agent: Hello, how can I assist you at this moment? 
 customer: I have to attend a workshop on Java technology in San Francisco SFO. Can you make a reservation from LAS? 
 agent: Sure, I will help you in booking the flight ticket. Can you please share your preferable journey dates? 
 customer: Sure, my journey dates are Apr 6 and Apr 8. 
 agent: Do you need any halt in this journey? 
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 agent: Wait a moment please. 
 customer: Sure. 
 agent: UA airlines with connecting flight is available on this route with a ticket fare of 100, shall I book your ticket? 
 customer: Yes, you can. 
 agent: Charles Green, your ticket is booked in flight number 1026. 
 customer: Thank you for your service. 
 agent: Thank you and have a safe journey.
customer: I need a stopover.