Hi.
user
Hello, what can I do for you today?
assistant
Can you help me change my existing reservation which was made on the name of Mary Green?
user
Sure, I will help you. Please wait for a minute, I will check the status and notify you.
assistant
Ok.
user
Thank you for waiting, we are sorry to inform you that no reservation was found on your name.
assistant
That's fine, thank you.
user
Thank you for choosing us.
assistant