Hi. I am Jacob White.
Hello, how can I help you today?
I would like to change my existing reservation, due to an emergency work my meeting has been postponed. Could you please avail me?
Sure, we are here to help you. Ok, please wait for a while.
Sure.
Thanks for waiting, no flight reservation found with you given name.
Ok, no problem. Thank you for your valuable information.
Thank you for opting us.