customer: Hello. 
 agent: Hello, how may I assist you? 
 customer: Paul Wilson here. 
 agent: Nice to meet you Paul. 
 customer: I want to attend a seminar in Charlotte.Can you please help me for booking a ticket? 
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 customer: My departure date is 06/14 and return date is 06/16. My airport codes are from DC-IAD to NC-CLT. 
 agent: Ok, hold on for a moment please. 
 customer: Make sure my connections limit is 1. 
 agent: Sorry to say this Paul, there are no flights with single connection. 
 customer: Ok, thank you for the information. 
 agent: Thank you for reaching us. Have a good day.
agent: Sure, may I know your travelling complete details please?