How To Pass Jquery Values To PHP In Laravel

I am creating a Ticket Reservation System and I want to insert data into the Database. As usual, I used HTML form and all the data goes to the database except seat numbers. And it doesn't give me an error. For the seat numbers, I used Jquery and I want to insert that Jquery values into the database. I don't know is this possible or not. ( Seat numbers = items )

How can I Fix this ??

Here is my Seat.blade.php

<form class="form-horizontal" id="form1" method="POST" action="{{ route('seatsinsert') }}" enctype="multipart/form-data">    

    {{ csrf_field() }}    

    <div class="dt"> <br>

        @if(session()->has('Msg'))
        <h4 class="alert alert-success"> {{ session()->get('Msg') }} </h4>
        @endif    

        <div class="form-group row">
            <label for="example-date-input" class="col-2 col-form-label">Select Date :</label>
            <div class="col-10">
                <input class="form-control" type="date" name="date" placeholder="mm-dd-yyyy" id="example-date-input">
            </div>
        </div>

        <div class="form-group">
            <label for="exampleSelect1">Select Time :</label>
            <select name="st" class="form-control" id="exampleSelect1">
                <option>10.30 am</option>
                <option>1.30 pm</option>
                <option>4.30 pm</option>
                <option>7.30 pm</option>
            </select>
        </div>  

    </div>

    <h2 style="font-size:1.2em;font-family: Times New Roman;"> Choose seats by clicking below seats :</h2>

    <div id="holder"> 
        <ul id="place">
        </ul>    
    </div>

    <input type="submit" class="btn btn-primary" id="btnShowNew" value="Continue"> <br><br>

    <script type="text/javascript">

        $(function () {

            $('#btnShowNew').click(function () {
                var str = [], item;
                $.each($('#place li.' + settings.selectingSeatCss + ' a'), function (index, value) {
                    var item = $(this).attr('title').var();
                    //str.push(item);                   
                    $.ajax({
                        type: "post",
                        url: "{{ route('seatsinsert') }}",
                        data: {items: item}
                    })

                });

                //alert(str.join(','));
            })
        });

    </script>
</form>

Here is my SeatController.php

public function seatsinsert(Request $request) {

$date = $request->input('date');
$st = $request->input('st');
$item = $request->input('items');
//$item = item;

$user = new Seats();
$user->date = $date;
$user->st = $st;
$user->item = $item;

$this->validate($request, [
    'date' => 'required'
]);

$user->save();

$request->session()->flash('Msg', 'Successfully Inserted !!');

return redirect('Seats');

}

Here are my Routes.

Route::post('seatsinsert', [
    'uses' => 'SeatsController@seatsinsert',
    'as' => 'seatsinsert'
]);