customer: Hello. 
 agent: Hello, how can I assist you? 
 customer: I am planning to visit Oakland to meet my father, can you please help me in booking a flight ticket from DCA to OAK? 
 agent: Sure, I am here to help you. 
 customer: Thank you. 
 agent: Do you need any connection in between the journey? 
 customer: Yes, I need a connecting flight. 
 agent: Ok, please share your travelling dates to check the availability of flights. 
 customer: Sure, my travelling dates are Sept 13 and Sept 15. 
 agent: Do you have class preference? 
 customer: Yes, I prefer economy class. 
 agent: May I know your name please? 
 customer: Myself Nancy Taylor. 
 agent: Please share your other preferences. 
 customer: No. 
 agent: Wait a minute please I will get back to you with the flight details. 
 customer: Sure, I will wait for your response. 
 agent: Thank you for waiting, sorry to inform no flights found with your details. 
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 agent: Thank you for reaching us, have a nice day.
customer: That's ok, thank you for your information.