public function setInfo()
 {
     $cruise = App\cruise::where('cruise_id', $_SESSION['cruise_select'])->first();
     $stateroom = App\stateroom::where('stateroom_id', $_POST['stateroomOption'])->first();
     $num_stateroom = $_POST['numStateroomOption'];
     $num_guest = $_POST['guestOption'];
     $total = $cruise->price + $stateroom->price * $num_stateroom + $num_guest * 100;
     $gst = round($total * 0.06, 2);
     $grand_total = $total + $gst;
     $data = array("cruise" => $cruise, "stateroom" => $stateroom, "num_stateroom" => $num_stateroom, "num_guest" => $num_guest, "total" => $total, "gst" => $gst, "grand_total" => $grand_total);
     $_SESSION['cruise'] = $cruise->cruise;
     $_SESSION['cruise_price'] = $cruise->price;
     $_SESSION['stateroom'] = $stateroom->stateroom;
     $_SESSION['stateroom_id'] = $stateroom->stateroom_id;
     $_SESSION['stateroom_price'] = $stateroom->price;
     $_SESSION['num_stateroom'] = $num_stateroom;
     $_SESSION['num_guest'] = $num_guest;
     $_SESSION['total'] = $total;
     $_SESSION['grand_total'] = $grand_total;
     return view('Book.payment', $data);
 }