Agents during the chat session can send a “serve request” to assess the quality of advice. The request for estimation may be sent to an agent at any time by selecting the “serve request” button. The visitor will see the serve request of the agent directly in the сhat history field of the visitor's chat window and be able to assess the agent in accordance with the selected scale of satisfaction, or to abandon by the proposal to evaluate the agent advice. In addition, the visitor can enter a comment to your assessment and send this information to the agent. Data on estimates collected reports and can be viewed supervisor to assess the satisfaction of visitors.