customer: Hello. 
 agent: Hello. How may I help you? 
 customer: I would like to book a ticket from LAX to IAD, can you please help me out? 
 agent: Can you share your trip dates? 
 customer: I am travelling on these dates May 13th and 15th. 
 agent: Do you need any connections? 
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 agent: Are there any other preferences? 
 customer: I prefer business class. 
 agent: May I know your name? 
 customer: Emma Lewis here. 
 agent: Sorry, there is no flight found with your details. 
 customer: Ok no problem, thank you for your services. 
 agent: Thank you for reaching us.
customer: I need single connected flight.