Hi.
user
Hello, how can I help you today?
assistant
Could you help me to amend my existing reservation?
user
Let me know your name to check your reservation?
assistant
I am Larry Gonzalez.
user
I have checked in reservation list to change your ticket, but could not find any reservation with your name.
assistant
No problem, thank you for the information.
user
Thank you for choosing us.
assistant