customer: Hello, I am John Green. 
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 customer: I would like to go to a beach in Washington, so could you please book a ticket to me? 
 agent: I am here to help you, can you please provide me your travelling dates? 
 customer: I would like to go on 07/14 and return back on 07/16. 
 agent: Ok, may I know your airport codes? 
 customer: My source and destination airport codes are PHX and IAD. 
 agent: Yes, I found a flight for you with 1 connection. Shall I proceed for booking? 
 customer: Ok, please proceed if it costs below 200. 
 agent: Your ticket is confirmed with the price 200. The flight number is 1027. 
 customer: Thank you. 
 agent: Thank you for choosing us. 
 customer: Welcome.
agent: Hello. How can I help you?