get data from combo box and store it to the session

get data from combo box and store it to the session

hello,

im just learning jquery and ajax via YT, and i tried to create a form with combo box, and show records from database based on combo box

after that, i want to store the data to the session

i already created the form that showing the records and already worked, but the button that i created that for store to the session, the ajax is not working.

ajax3.php (index)

<form action="cari.php" method="POST">
     <select name="kamar">                   
          <option value="regular single">Regular Single Rp 99.000</option>
          <option value="regular double">Regular Double Rp 120.000</option>
          <option value="family single">Family Single Rp 127.500</option>
          <option value="family double">Family Double Rp 150.000</option>
          <option value="vip single">V.I.P Single Rp 170.000</option>
          <option value="vip double">V.I.P Double Rp 200.000</option>
     </select>
     <br>
     <button type="submit" name="submit">Submit</button>
</form>
<br>
<div id="tampil"></div>

<script type="text/javascript">
$(document).ready(function(){
$('form').on('submit', function(e)
          {
e.preventDefault();
$.ajax({
type: $(this).attr('method'),
url: $(this).attr('action'),
data: $(this).serialize(), 
success: function(data){
$("#tampil").html(data);
     },
});
$('.simpanData').on('submit', function(e)
{
e.preventDefault();
$.ajax({
type: "get",
url: $(this).attr('href'),
data: $(this).serialize(),
success: function(data){
$("#tampil").html(data);
 },
});
});
});

});

here is cari.php (searching)

<?php
include "koneksi.php";
$jenis = $_POST['kamar'];
$sql= "select * from kamar where jkamar = '$jenis' ";
$result = mysqli_query($conn, $sql);

?>
<table>
<?php
if(mysqli_num_rows($result) > 0)
          {
while ($data = mysqli_fetch_array($result))
               {
$link_simpan = "<a class='simpanData' href='simpan2.php?nokmr=".$data['nokamar']."'>Simpan</a>";
?>
               <tr>
                    <td value="<?php echo "nokamar = $data[nokamar]"; ?>"><?php echo $data['nokamar'];?></td>
                    <td><?php echo $link_simpan ?></td>
               </tr>
<?php
               }
          }
else
          {
echo "no more data!";
          }
?>
</table>


any help will be appreciated, thanks