customer: Hello. 
 agent: Hello, how may I assist you? 
 customer: Please book me a ticket from CLT to BOS to meet my family. 
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 customer: My trip dates will be Feb 11th to Feb 13th. 
 agent: Do you have any class preference? 
 customer: I prefer a business class. 
 agent: Would you like to travel in a connecting flight or a direct flight? 
 customer: I need a connecting flight. 
 agent: Do you have any other specifications? 
 customer: No. 
 agent: May I know your good name please? 
 customer: I am Katherine Collins. 
 agent: Sorry, there is no flight available on your requested dates. 
 customer: Its ok, thank you. 
 agent: You are welcome.
agent: Sure, may I know your planned travel dates please?