customer: Hi. I am Jack Robinson. 
 agent: Hello, How can I aid you? 
 customer: I want to book a flight ticket from MA-BOS to CO-DEN. Can you help me with this booking? 
 agent: Sure, I am here to help you. May I know your travelling dates? 
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 agent: Do you have any connection limit? 
 customer: I need a stop over. 
 agent: Thanks for your details,Please hold on. 
 customer: Ok. 
 agent: Thanks for waiting. There are no flights found on your data. 
 customer: No issue. Thank you. 
 agent: Thank you.
customer: 04/12 and 04/14 are my travelling dates.