Hello, I am Linda Anderson.
 Hello, How exactly I can serve you the best today?
Due to some entrepreneurship meeting, I am going to change my existing reservation. Can you please help me in changing the reservation?
Sure, I will help you with that.
Thank you.
Please wait a while.
Sure.
Thank you for waiting. I have checked in reservation list to change your ticket, but could not find any reservation with your name.
No problem, thank you for the information.
Thank you for choosing us.