Hello.
Hello, how may I oblige you today?
 I already have an reservation to attend at my meeting, due to some problems meeting place has been changed. So I need a few changes in my reservation.
Sure, we are here to make your work ease.
Thank you.
May I know your name please?
Sure, you can check my reservation on the name of Brandon Miller.
Ok, just a moment.
Sure.
Thank you for waiting, we are sorry to say that no reservation was found on your name in our database.
No worries, thanks for your help.
Thank you for selecting us.