CUSTOMIZE CHAT SYSTEM OR PLUGIN FOR WORDPRESS WEBSITE

I want to use chat plugin for wordpress site. The website has 2 types of user,hair salon user and hair stylist. I want to let them chat each other. You can use plugin that is free or not. If you can customize it. I want to finish this within 5 hours from now. Below is my feature for chat system -Hair Salon can chat with any stylists -Hair Salon can't chat with any hair salons -Hair stylist can chat with only hair salons who send message to hair stylist (so stylist can't chat with anyone as long as they get message from hair salon user)W -If hair stylist got message a hair salon,the stylist can see a button to chat in the hair salon profile page example, if SALON A send message to B stylist,contact button show up only in SALON A profile page and list page and B can send it -need contact list for chat -if hair salon remove a stylist from contact list,the stylist can't send message anymore