Hello.
user
Hello, how can I aid you today?
assistant
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
May I know your name to check with existing reservation?
assistant
My name is Jeffrey Campbell.
user
There is no reservation found under your name.
assistant
That's ok, thank you for checking.
user
Thank you for choosing us.
assistant
Welcome.
user