Hello.
user
Hello. How may I aid you?
assistant
My name is Benjamin Wilson. I want to do some changes in my existing reservation, can you help me for that?
user
Sure, I am here to help you.
assistant
Thank you.
user
Sorry, I did not find any reservation on your name in our database.
assistant
That's ok, thank you for checking.
user
Welcome, have a nice day.
assistant