Hello.
user
Hello, how can I aid you?
assistant
I want 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 Kevin Brown.
user
Give me a minute for checking.
assistant
Sure, I will wait for your response.
user
Sorry, there is no reservation found under your name.
assistant
That's ok, thank you for checking.
user
Thank you for choosing us.
assistant