Chat between user and user inside the web

Hi, my web has two types of users and i’m just an intermediary platform that offers the services of users to other users, so one user is a seller and another user is a buyer, i want to allow the user that is a buyer to contact the seller by chat before they buy their service so they can solev any doubts about the service before the buyer user buys the service. Ofcourse with some limitation like not to be able to send their telephne number or this type of things. Does you plugin App do this and allows what i am looking for?