Hi.
Hello, how can I assist you?
Virginia Harris here. I want to do some changes in my flight ticket reservation. Can you help me do that?
Sure, I am happy to help you. Please wait, I will check your reservation status and get back to you.
Ok.
Harris, I have found your reservation. Please provide me your travel dates.
My preferable dates for travel are 09/07 to 09/09.
Ok, please help me with your source and  destination airport codes.
My airport codes for boarding the flight are IAD to DFW.
Sorry, there is no flight available on your preferred dates.
Ok, not a problem. Thank you.
You are most welcome and thank you for choosing us.