Hello.
user
Hello, how may I help you?
assistant
I am looking to do some changes in my existing reservation. Can you help me for that?
user
Sure, may I know your name?
assistant
My name is Jeffery Clark.
user
Sorry, there is no reservation found under your name in our database.
assistant
That's ok, thank you for checking.
user
You are welcome and thank you for choosing us.
assistant
Welcome.
user