Hello, I am Frank Moore.
user
 Hello, how can I assist you today?
assistant
Will you please help me in changing my reservation as the meeting which I scheduled to attend got postponed?
user
Sure, I will help you with that.
assistant
Thank you.
user
Please wait a while.
assistant
Sure.
user
Thank you for waiting. I have checked in reservation list to change your ticket, but could not find any reservation with your name.
assistant
It's ok, thank you for your information.
user
Thank you for reaching us.
assistant