In the Messages section, you can view your dialogs and delete the ones you no longer need. 

Viewing Dialogs

To view the correspondence in the dialog, double-click it. 

 

The dialog window will be opened in the right-hand part of the page. You will be able to read through the correspondence history, write a reply or a new message. 

Deleting Dialogs

You can't remove individual messages of a dialog. Only the entire dialog can be deleted. To do this, click the top right corner of the dialog and click the Delete Chat link.

In the Delete Chat window confirm your decision. Click the Delete button. The deleted dialog can't be recovered. 

The deleted dialog will disappear only in the account, where the removal has been performed. In the interlocutor’s account, the correspondence history will be kept.

If the user is deleted or deactivated the correspondence history will be also kept while the dialogs will be no longer active.