Hi. I am Timothy Lee.
user
Hello, how may I support you today?
assistant
I want to change my existing reservation. Can you help me in this?
user
Sure.
assistant
Thank you.
user
Please wait a moment.
assistant
Sure.
user
Sorry to say that, there is no active reservation on your name.
assistant
Not a problem, thank you.
user
Thank you for approaching us.
assistant