Have a gridview in your page, also create the Columns similar to the columns in the dataset table.
<asp:GridView ID="SampleGrid" runat="server" >
</asp:GridView>
Extend your ajax call method to populate the result data.
$.ajax(
{
type: "POST",
url: "../../GeneralService.asmx/Booked_Items",
dataType: "json",
data: {},
contentType: "application/json; charset=utf-8",
success: function (json) {
var xmlDoc = $.parseXML(json.d);
var xml = $(xmlDoc);
var customers = xml.find("Table1");
for (var i = 0; i < customers.length; i++) {
$("#SampleGrid").append("<table><tbody><tr><td>" + customers[i].Column1 +
"</td><td>" + customers[i].Column2 + "</td></tr></tbody></table>");
}
}
});