Hello.
user
Hello. How may I assist you?
assistant
I want to change my existing reservation. Could you help me with that?
user
Sure, I am here to help you out. May I know your name please?
assistant
Ruth Thompson.
user
Ruth Thompson, we haven't found any reservation under your name in our database.
assistant
That's ok, no problem. Thank you.
user
Thank you for choosing us.
assistant