Hello.
Hello, do you need any help from us?
I need to change my reservation due to my planned event got postponed. So please help me with changing my reservation.
Sure, could I have your name please?
Thank you.  Myself Jerry Perez.
Ok, I have found your reservation. May I know your trip dates?
That is great. I have planned my travel dates as Apr 23 and Apr 25.
Ok, could you please tell us your location airport codes?
Sure, DFW and MCO are the required airport codes.
Ok, do you need direct or connecting flight?
I am looking for direct flight so please make sure that.
Ok, may I know your class preference?
I am ok with any class to travel.
Ok, please allow me a moment.
Sure, take your time.
Sorry, there is no flight with your requested connection limit.
Oh! It is sad  to hear. Anyway, thank you for your time.
You are welcome, have a great day.