condition check for Jquery radio button :     <div class="error-message"></div>

     <form id="satisfaction" onsubmit="return validateInput()">
      <input type="radio" name="satisfied"  value="yes" required /> Satisfied
     <input type="checkbox" name="donate" /> Donate<br />
    <input type="radio"  name="satisfied" value="no" required /> Not satisfied
        <input type="text" name="reason" /> Reason<br />
       <input type="submit" value="Submit" />
      </form>
      <script>

How can I  write a code in Jquery that let the user check the donate button if and only if the satisfied button is checked? please help me here