Hi.
user
Hello, how may I help you?
assistant
Help me in change my reservation?
user
Sure, I am here to help you. May I know your name?
assistant
I am Lisa Adams.
user
Thank you. Please wait for a while.
assistant
Ok.
user
Sorry, I did not find any reservation under your name in our database.
assistant
That's ok, thank you.
user
You are most welcome.
assistant