Hello.
Hello, how can I help you today?
I want to do some modifications in my previous reservation, can you please help me out?
Sure, Let me know your name to check your reservation?
My name is Sarah Jones.
Ok, please wait a moment.
Sure, I will wait for your response.
Thank you for waiting. I have checked in reservation list to change your ticket, but could not find any reservation with your name.
That's ok, thank you for checking.
Thank you for choosing us.