Hello.
Hello. How can I aid you?
I want to change my existing reservation. Can you help me?
Sure, We are here to assist you.
Thank you.
May I know your name?
Yes, I am Barbara Anderson.
Give me a  minute.
Sure.
We found a reservation by this name. Can I know your updates travelling dates?
Ok, my planned trip dates are on Apr 30 and return on May 02.
May I know your airport codes?
Yes, my airport codes are from ORD to LAS.
Do you have any connection limit?
No, I don't have any connection limit.
There is a flight with your requirement, airline is United Airlines with price 300 and single connection. Shall I proceed with booking?
Ok, you can proceed with the ticket booking.
Your booking is done and flight number is 1012.
Thank you for your help.
Thanks for reaching us.