customer: Hello. 
 agent: Hello. 
 customer: I am Charles Roberts. 
 agent: What can I do for you now? 
 customer: I am planning to attend business meeting at DTW, can you please help me with booking a flight ticket from DCA? 
 agent: Charles Roberts, may I know your travelling dates? 
 customer: Sure, I would like to take off on May 13 and return on May 15. 
 agent: Do you have any other requirements? 
 customer: I would like to return during afternoon time. 
 agent: Flight-1004 is available with return time in afternoon with 1 connection at the price of 100. Can I book it? 
 customer: Yes, please proceed with the booking. 
 agent: Your ticket is reserved, thank you for approaching us. 
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 agent: Have a safe journey.
customer: Thank you for your help.