Hello.
user
Hello, how can I help you today?
assistant
I want to change my existing reservation, can you please help me out?
user
Sure, may I know your name to proceed further?
assistant
My name is Steven Clark.
user
Please wait.
assistant
Sure.
user
Sorry, no active reservation found on your name.
assistant
That's ok, thank you for checking.
user
Thank you for contacting us.
assistant