Hi,.
Hello, how may I serve you today?
I am Amanda Taylor. I made a reservation earlier this week to give a seminar but due to weather conditions I need to change the reservation dates. Can you help me in changing my reservation?
Sure, please wait for a while.
Sure.
Thank you for waiting.
Ok.
Sorry we couldn't find any reservation with your  name.
Ok, thank you.
Thank you for choosing us.