customer: Hello, I am Carolyn Williams. 
 agent: Hello, How may I help you today? 
 customer: I am planning to participate in live event in National theater which is in Washington, can you please help me to book a flight with 500? 
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 customer: My departure day is from 09/23 and I am arriving on 09/25. 
 agent: Let me know your airport codes. 
 customer: I want to travel from PHL-IAD. 
 agent: Please wait for a while. 
 customer: Ok. 
 agent: There is a flight with airline: South West, flight number:1002, price 200, 1 connection. Shall I proceed? 
 customer: Yes, please proceed. 
 agent: Your ticket has been confirmed. 
 customer: Thanks for your service. 
 agent: Thank you.
agent: Sure, may I know your travelling dates?