Hello.
user
Hello, how can I help you today?
assistant
Due to some entrepreneurship meeting, I am going to change my existing reservation. Can you please help me in changing the reservation?
user
Sure, Let me know your name to check your reservation?
assistant
I am Sarah Harris.
user
Ok, please wait a moment.
assistant
Sure.
user
 I have checked in reservation list to change your ticket, but could not find any reservation with your name. Thank you for waiting.
assistant
No problem, thank you for the information.
user
Thank you for choosing us.
assistant