customer: Hello. 
 agent: Hello, how can I aid you? 
 customer: I want to book a flight from DCA to visit PHX for vacation. Can you book a flight for me? 
 agent: May I know your trip dates? 
 customer: I will fly on Feb 19 and return on Feb 21. 
 agent: Do you have any connection limit preference? 
 customer: I prefer a direct flight. 
 agent: Do you have any other specifications? 
 customer: No. 
 agent:  Could you help me with your name please? 
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 agent: Sorry, there is no direct flight available for the given dates. 
 customer: Ok, thank you for the information. 
 agent: Thank you for reaching us.
customer: My name is Joshua Green.