title: Include username in file name
body: <p>I am trying to make a dm support bot in discord.js.</p>
  <p>I thought about a DB where for each open ticket I make a .json file in a directory including the date and the username of the person that DM'd the bot.
  But, I don't know how to:</p>
  <ol>
  <li>check for a file with the user's name so that it doesn't keep opening tickets instead of sending the user's message</li>
  <li>Send the user's message if his ticket is already opened</li>
  <li>create the .json file when the name isn't found</li>
  <li>Create a channel for the staff to see</li>
  </ol>
  <p>I wish to use the module FS for those things.</p>
  <p>EDIT: I went a totaly different way, abd ysed a database. Thanks for helping tho!</p>