title: How to get newest reply of a user in discord
body: <p>I want to write a discord bot to get some information from user when they reply my bot on channel. 
  So when they </p>
  
  <pre class="lang-py prettyprint-override"><code>async def on_message(message):
      if message.content.startswith('$greet'):
          await message.channel.send('Say hello!')
          msg = await client.wait_for('message', check=check)
          print(message.content)
  </code></pre>
  
  <p>When I run the code and message  <em>$greet</em> to my bot, it will reply with <em>Say hello!</em>, when I message <em>hello</em>, it responds with <em>$greet</em>, but I want it to reply <em>hello</em></p>
  
  <p>Any help will be appreciated! </p>