Retrieve data from JSON object if there is no array

Hi,

I want to retrieve data from objects like OrderId and bookingNr which dont have array's inside of it.
How can I access those data with Ajax GET and output to my datatable?

 ajax: {
      url: "https://apicheckintest.",
      method: "GET",
      timeout: 0,
      headers: {
        Authorization: "Bearer ",
        Cookie:
          "",
      },
      dataSrc: "products",
      dataType: "JSON",
    },
    dom: "frtipB",
    buttons: [
      {
        text: "My button",
        action: function (e, dt, node, config) {
          var test2 = test.rows({ selected: true }).data().toArray();

          $.each(test2, function (index, item) {
            table += `<tr><td>${test2[index].id}</td><td>${test2[index].passengerFirstName}</td><td>${test2[index].passengerLastName}</td><td>${test2[index].price}</td><td>${test2[index].currency}</td><td>${test2[index].code}</td><td>${test2[index].flightNumber}</td><td>${test2[index].std}</td><td>${test2[index].departureAirport}</td><td>${test2[index].arrivalAirport}</td></tr>`;
            
            
          });
          console.log(table);
          console.log($('.productList').val());
           $('.productList').val(table);
          // console.log(productNames);
          // $('.productList').val(productNames);
         
          // NWF$('#CustomerRecordsTable').html(productNames);
        },
      },
    ],
    columnDefs: [
      {
        orderable: false,
        targets: 0,
        className: "select-checkbox",
        visible: true,
      },
    ],
    columns: [
      { data: null, defaultContent: "" },
      { data: "id" },
      { data: "passengerFirstName" },
      { data: "passengerLastName" },
      { data: "price" },
      { data: "currency" },
      { data: "code" },
      { data: "flightNumber" },
      { data: "std" },
      { data: "departureAirport" },
      { data: "arrivalAirport" },
    ],

Edited by Kevin: Syntax highlighting. Details on how to highlight code using markdown can be found in this guide