Hello.
Hello, how may I aid you for today?
I am Debora Hill want to change my reservation due to prepone of my exam.
Sure, I will help you with that Hill.
Thank you.
Good to say this Hill, I have found your reservation. Can you please provide your respective locations codes?
I will depart from TX-AUS to MI-DTW.
Can you please let me know your planned dates of your journey?
My planned dates are 08/20 and 08/22.
I have found a flight with 1 connecting flight having a ticket fare of 100 which is provided by Delta airlines. Shall I proceed with the booking?
No, do not proceed I need a  direct flight.
Sorry to say this Hill, there are no direct flights for your journey. If you want I can provide your a connecting flight for your journey?