app/views/hello/management/cancel.html.erb
<div class="row">
<%= render '/hello/shared/settings' %>
<div class="col-sm-3-offset col-md-2-offset col-sm-9 col-md-10">
<h1>Cancel Account</h1>
<p>Are you sure you want to cancel your account?</p>
<p><%= button_to "Cancel my Account", hello.profile_path, method: :delete %></p>
<p><%= link_to "No, I want to stay", root_path %></p>
</div>
</div>