EXAMPLE 1: (BEST)
LINK: http://bit.do/fJ3WG
IMG: https://i.ibb.co/55WMgh9/CRC.png
EXAMPLE 2: http://bit.do/fJ3Wy
You can ask your leads to rate their live chat conversation automatically after closing the chat by turning on the appropriate toggle in the Live chat settings. Or manually by sending /rating command in the live chat.
We also have the Activity report that, apart from different live chat metrics, shows you the everage rate per agent. It is available for Professional plan and higher.