customer: Hi. 
 agent: Hello, how can I assist you today? 
 customer: Will you help me to book a flight ticket from DCA to OAK? 
 agent: Sure, I am here to help you. 
 customer: Thank you. 
 agent: May I know your journey dates please? 
 customer: June, 9 and June, 11 are my journey dates. 
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 customer: I would prefer single connection. 
 agent: In which class, you prefer to go? 
 customer: I am comfortable with any class. 
 agent: Do you have any other concerns? 
 customer: No. 
 agent: To proceed further, we need your good name. 
 customer: Catherine Wright. 
 agent: We found a connecting flight with a fare of 400 in 1022 Delta Airlines, shall I proceed? 
 customer: Please proceed. 
 agent: Ok, your ticket has been confirmed in business class. 
 customer: Thank you. 
 agent: Thank you for choosing us.
agent: Ok, let me know your connection limit.