customer: Hello. 
 agent: Hello, may I know your name please? 
 customer: I am Mark Phillips. I want to book a flight ticket with a single connection, will you help me in booking a flight ticket? 
 agent: Sure, we are here to provide flights as per your request. 
 customer: Thank you. 
 agent: Please share your travel dates, on which you have planned your journey. 
 customer: My departure is 10/20 and return date on 10/22. 
 agent: Ok, mention your price limit here? 
 customer: My price limit is 500. 
 agent: Ok, mention your airport abbreviates here? 
 customer: I am planning to visit National Building Museum in DC - IAD and origin from TX - DFW. 
 agent: There is a flight in UA airline with number 1004 available for you. Shall I proceed to it? 
 customer: You can proceed to booking. 
 agent: Ok, your booking has been confirmed successfully. 
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 agent: Thanks for reaching us, have a nice day.
customer: Thanks for your service.