Hello.
user
Hello.
assistant
My name is John Smith.
user
How can I assist you today?
assistant
I want to do some changes in my existing reservation. Can you help me for that?
user
I am here to help you, let me check your reservation status.
assistant
Thank you.
user
Smith, I have not found any reservation by your name.
assistant
That's ok, thank you for checking.
user
Thank you for contacting us and have a nice day.
assistant
Welcome.
user