ticketfrei/template/register-plain.tpl

<form action="register" method="post">
    <label for="email">Email</label>
    <input type="text" placeholder="Enter Email" name="email" id="email" required>

    <label for="city">City</label>
    <input type='text' name='city' placeholder='Barcelona'/>

    <label for="pass">Password</label>
    <input type="password" placeholder="Enter Password" name="pass" id="pass" required>

    <label for="pass-repeat">Repeat Password</label>
    <input type="password" placeholder="Repeat Password" name="pass-repeat" id="pass-repeat" required>

    <button type="submit">Sign Up</button>
</form>