customer: Hello. 
 agent: Hello. How may I help you? 
 customer: I am Richard Davis. I want to travel from IAD to ORD to visit the state which is located at Michigan in Chicago. Can you help me to book a ticket? 
 agent: Sure, I am here to help you. May I know your travelling dates? 
 customer: My departure date is 07/23 and return date is 07/25. 
 agent: Ok, wait a moment. 
 customer: Sure. 
 agent: We found a flight for you with 2 connection limit. Shall I proceed for booking? 
 customer: Sorry my connection limit is 1. 
 agent: Sorry, there no flight available with 1 connection. 
 customer: That's fine. Thank you for your help. 
 agent: Ok, wait a moment. There is flight with 1 connection again I have searched. 
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 agent: Your ticket is confirmed with flight number 1022 and airline is UA. Thank you for choosing us. 
 customer: Thank you for your service.
customer: That's great. Confirm the booking.