Hi.
user
Hello, How exactly I can serve you the best today?
assistant
Could you help me to amend my existing reservation?
user
Let me know your name to check your reservation?
assistant
I am Robert Baker.
user
I have checked in reservation list to change your ticket, but could not find any reservation with your name.
assistant
Not a problem, thank you for the information.
user
Thank you for choosing us.
assistant