customer: Hello. Anthony King here. 
 agent: Hello, how may I support you today? 
 customer: I want to book a flight ticket from LAX to DCA. Can you help me in that? 
 agent: Sure, please share me your trip dates. 
 customer: My trip dates are June 25 to 27. 
 agent: Do you need any preferences? 
 customer: I need a connecting flight. 
 agent: Please hold for a while. 
 customer: Ok. 
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 customer: Ok, no problem. Thank you. 
 agent: Thank you for reaching us.
agent: Sorry to say that, there are no flights available on the routes of your journey.