reporting a conversation

i was thinking about something to report a conversation you had by private message or a group chat for a conversation that occured out of a game with people that try: getting account information, that verbally abuse you, or send you a link in the type: hey man look at this for free rp, if someone send me a link, for example: how to get free rp or something like that i could just click a button and then report him for a reason just like at the end of a game so that he dont send it to someone else (maybe add a flag at the top right corner of a private chat box and on a group chat you could right click the summoner name and add an option to report that player)