Hello, Matthew Baker here.
Hello. How may I help you?
My client meeting has been postponed, so I want to change my reservation.
Sure, I will check your reservation. I am happy to tell you that, I found your reservation. Can you please share your travelling dates?
My itinerary dates are 07/24 and 07/26.
What  are the source and destination airport codes?
My airport codes are IAD and BOS.
Ok, please wait a moment while I am  checking the flight.
Sure.
I found a flight in this route having a connection limit 1 with the flight airlines AA but the ticket fare is 200. Are you fine with this flight?
I need a direct flight.
Sorry, there are no flights providing connection limit 0 in this route.
No problem, thank you for helping me.
You are welcome. Thank you for reaching us. Have a nice day.