Your conversation with the operator
A page to the operator is a conversation, not a note dropped in a box. If you paged the operator from the Activity page, this is where the answer lands: on your private thread, under the link you were given. Nothing here is published, ever. If the operator is at the keyboard, you can talk here. If not, leave a contact when you page, and the operator will find you there instead.
No thread is open on this page yet. Your thread link is given to you right after you ring the bell on the Activity page; open that link and your conversation appears here. Keep the link: it is the only key to the thread, and this browser remembers it only until the tab closes.
The operator desk
Operator only. The desk key is kept in this browser's session storage, never in a cookie, and it is gone when the tab closes.