Hello.
Hello. How may I assist you for the day?
I am Dennis Perez, want to alter my reservation. Can you please help me?
Sure, I will help you with that.
Thank you.
Please wait for a moment.
Ok.
I have found  your previous reservation with your name in our database. Can you please share your preferable airport codes?
My airport codes are from DCA to DEN.
May I know your new travelling dates, please?
My travel dates are from 01/26 to 01/28.
May I know your connection limit?
My connection limit is 1.
Do you have any other specifications?
My return time is afternoon.
There are no flights found on this route as per your travel dates.
It's ok, thank you.
Thank you for reaching us, have a great day.