Hello. I am Gary Hill.
Hello. How can I help you?
I need to change my recent reservation due to postpone of my family get to gether. Could you please help me in doing that?
Ok, please wait.
Sure.
We found reservation on your name, could you provide me your new journey details?
Sure, My new travelling dates are 03/21 and return on 03/23. My new airport codes are SFO and EWR.
Ok, please wait.
Sure.
 Sorry, no flights are available on your requested dates.
No problem, thank you for your information.
 Thank  you for availing us.