Hello.
Hello, how may I help you?
I have to do some modification in my previous flight ticket booking that there is a sudden event held at my home town, so I am unable to travel the trip. can you please help me out with changing of my reservation?
Sure, may I know your name?
Myself Patrick Moore.
 Happy to inform you, we have found your reservation. Please provide me your new airport codes.
My new airport codes are from BOS to CLT.
Can I know your trip dates?
My trip dates are from 07/10 to 07/12.
D you have any additional requirement?
I need a single connecting flight.
Ok, please wait a minute.
Ok, take your time.
Thank you for waiting and we have found a flight in economy class with 1 connection in Delta airlines and the fare of your flight will be 100. Do you like me to proceed your booking with this flight?
Please proceed  my booking.
Your ticket is booked in 1005 flight.
Thank you for your help.
Most welcome.