Hello.
user
Hello, how can I help you today?
assistant
I would like to change my existing reservation due to change in my schedule. Could you please help me?
user
Sure, I will help you with that. Let me know your name to check your reservation?
assistant
I am Larry Hill.
user
Ok, please wait a moment.
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
No worries, thank you for the information.
user
Thank you for choosing us.
assistant