Hello,.
Hello, how can I help you?
Can you please help me in changing my existing reservation, as  my exam got postponed.
Sure, May I know your name?
Sure, my name is Joshua Robinson.
Ok, please wait.
Ok.
Thanks for waiting, we found reservation on your name, please provide your travelling dates.
Sure, my new trip dates are Mar 02-04.
Can I know your airport codes?
My airport codes are OAK to DTW.
Do you have any preferences?
I need a connecting flight.
Sorry, There are no flights found on your data.
Ok, no issues. Thank you for your help.
Thank you.