Hi. Timothy Evans here.
Hello Evans, how can 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, I will help you with that. Happy to inform you that, I found your reservation. Can I have your new travelling airport codes?
The airport codes are from SEA to DEN.
On which dates you want me to book your tickets?
The travel dates are from 01/16 to 01/18.
Flight 1005 in Southwest airlines is available for you with 1 connection and price is 100. Shall I proceed?
Please proceed with that.
Your booking is done.
Thank you.
Welcome, have a safe flight.