customer: Hello. 
 agent: Hello. How can I aid you today? 
 customer: Can you please assist me for booking from EWR to PHX? 
 agent: Sure, I am happy to help you. May I know your travel dates please? 
 customer: My trip dates are on Aug 17 and 19. 
 agent: Ok, do you have any specifications? 
 customer: I prefer to travel in an economy class. 
 agent: Ok, hold on for a moment. Let me check the best available flight for you. 
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 agent: May I know your name please? 
 customer: Joseph Martinez here. 
 agent: Sorry Joseph Martinez, there are no flights available on your requested dates. 
 customer: Ok, thanks for your response. 
 agent: Welcome, thank you for choosing us. Have a great day.
customer: Sure.