Formulário de Pedidos

Estou alterando um template e na parte do formulário de pedidos o campo original que preciso alterar é number of persons. Preciso alterar para Endereço de entrega. Sou leigo e quebrei a cabeça e não consegui alterar, sempre dá que o number of persons tá errado. Alguém pode me dar um help? Abaixo segue o codigo do formulário no html e no php. Grato desde já.

<form method="post" id="reservation-form" action='include/reservation-process.php'>

<div class="row">

<div class="span4">
<label for="author">Data*</label>
 <p><input type="text" name="datepicker" id="datepicker" class="reservation-fields" size="30"/></p>
</div>
<div class="span4">
 <label for="time">Hora*</label>
 <p><select name="time" class="reservation-fields">
 <option value="09:00">09:00</option>
 <option value="10:00">10:00</option>
 <option value="11:00">11:00</option>
 <option value="12:00">12:00</option>
 <option value="13:00">13:00</option>
 <option value="14:00">14:00</option>
 <option value="15:00">15:00</option>
 <option value="16:00">16:00</option>
 <option value="17:00">17:00</option>
 <option value="18:00">18:00</option>
 <option value="19:00">19:00</option>
 <option value="20:00">20:00</option>
 <option value="21:00">21:00</option>
 </select></p>
</div>
<div class="span4">
 <label for="persons">Endereço*</label>
 <p><input type="text" name="persons" class="reservation-fields" /></p>
 </div>

</div><!--end row-->

<div class="row">

 <div class="span4">
 <label for="author">Nome*</label>
 <p><input type="text" name="author" class="reservation-fields" /></p>
 </div>
 <div class="span4">
 <label for="email">Email*</label>
 <p><input type="text" name="email" class="reservation-fields" /></p>
 </div>
 <div class="span4">
 <label for="title">Telefone*</label>
 <p><input type="text" name="phone" class="reservation-fields" /></p>
 </div>

</div><!--end row-->
 <label for="message">Pedido*</label>
 <p> <textarea name="message" id="message2" cols="100" rows="10" tabindex="4"></textarea></p>
 <p><input type="submit" value="Enviar Pedido" id="submit" /></p>

</form>

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parte do php

<?php

$recipient = "adesivosimbituba@gmail.com";
$date = $_POST['datepicker'];
$time = $_POST['time'];
$persons = $_POST['persons'];
$author = $_POST['author'];
$email = $_POST['email'];
$phone = $_POST['phone'];
$mess = $_POST['message'];

if (isset($_POST['email'])) {
 if (preg_match('(\w[-._\w]*\w@\w[-._\w]*\w\.\w{2,})', $_POST['email'])) {
 $msg = 'E-mail address is valid';
 } else {
 $msg = 'Invalid email address';
 }

 $ip = getenv('REMOTE_ADDR');
 $host = gethostbyaddr($ip);
 $message .= "Data: ".$date."\n";
 $message .= "Hora: ".$time."\n";
 $message .= "Entrega: ".$persons."\n";
 $message .= "Nome: ".$author."\n";
 $message .= "Email: ".$email."\n";
 $message .= "Telefone: ".$phone."\n";
 $message .= "Pedido: ".$mess."\n\n";
 $message .= "IP:".$ip." HOST: ".$host."\n";

 $headers .= "Reservation: <".$email.">\r\n";
 $title .= "Restaurant Reservation";

 $sent = mail($recipient, $title, $message, $headers);

$text = "Thanks for contacting us! We will check your message within a few hours.";

echo '<xml> <someText>'.$text.'</someText> </xml>';

} else {

 die('Invalid entry!');
}

?>