customer: Hello. 
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 customer: Larry Harris here. 
 agent: How can I assist you? 
 customer: Can you book me a ticket from DCA to EWR? 
 agent: Can I know your travel dates? 
 customer: Sure, here are my preferred travelling dates 10/20 and 10/22. 
 agent: The flight 1012 of Southwest airlines is available on your requested dates. Shall I proceed? 
 customer: Please book the ticket. 
 agent: Larry, your reservation has done successfully. 
 customer: Thank you for the help. 
 agent: You are welcome.
agent: Hello.