Hello.
Hello, how may I assist you?
I am Kimberly Perez.
Nice to meet you Perez.
I want to alter my reservation, due to postponement of concert to be held at the place where I wanted to visit,can you please take your some time for helping me?
Sure, please wait for a minute.
Ok.
I cannot find any reservation with your name. Do you want to know any thing else from us?
No thanks, anyway thank you for your help.
It's my pleasure.