Hello.
Hello. What assistance do you need from our agency?
I just want to change my existing reservation, due to sudden change in meeting. Can you please assist me for modifications?
Sure, I am glad to help you with that. Could you please tell me your name to check the ticket status?
Sure, please check my reservation on the name of Kathleen Jones.
I have found your past ticket in our records, can you please tell me your airport codes?
Sure, my airport codes are OAK to reach my destination PHL.
Ok, may I know your departure and return journey dates please?
My travelling dates are on Aug 19 and 21.
Ok, please tell me your preferences if any.
I prefer an economy class.
Ok, do you have any connection limit requirement?
No.
Ok, there is a flight with the connection limit 2 which is an economy class flight. This flight departs at 22:00 PM and returns at 22:00 PM. Shall I proceed with the ticket reservation process?
Ok, please proceed for booking.
I have changed your travelling details in the ticket, the  flight number is 1005 in an American Airlines. Have a nice journey.
Thank you.
Most welcome. Thank you for approaching us.