Untitled

<?xml version="1.0"?>
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
    <body>
        <referenceBlock name="customer_account_navigation">
            <block class="MagentoFrameworkViewElementHtmlLinkCurrent" name="customer-account-navigation-suppport-ticket-link" after="-">
                <arguments>
                    <argument name="path" xsi:type="string">support/customer/index</argument>
                    <argument name="label" xsi:type="string">Support Ticket</argument>
                </arguments>
            </block>
        </referenceBlock>
    </body>
</page>

<?xml version="1.0"?>
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
    <update handle="customer_account"/>
    <head>
        <title>Support Ticket</title>
        <css src="Namespace_Support::css/styles.css"/>
    </head>
    <body>
        <referenceContainer name="content">
            <block class="NamespaceSupportBlockTicketList" name="ticketViewList" template="Namespace_Support::list.phtml" />
        </referenceContainer>
    </body>
</page>

<?php echo 'hello' ;?>

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
    <module name="Namespace_Support" setup_version="1.0.0">
        <sequence>
            <module name="Magento_Customer"/>
        </sequence>
    </module>
</config>

<?php
namespace NamespaceSupportControllerCustomer;

use MagentoFrameworkAppAction;
use MagentoFrameworkExceptionNotFoundException;
use MagentoFrameworkControllerResultFactory;

class Index extends NamespaceSupportControllerIndex
{
    /**
     * Show customer tickets
     *
     * @return MagentoFrameworkViewResultPage
     * @throws NotFoundException
     */
    public function execute()
    {
        /** @var MagentoFrameworkViewResultPage resultPage */
        $resultPage = $this->resultFactory->create(ResultFactory::TYPE_PAGE);
        return $resultPage;
    }
}

<?php

namespace NamespaceSupportBlockTicketList;


class TicketList extends MagentoFrameworkViewElementTemplate {

    public function __construct(MagentoCatalogBlockProductContext $context, array $data = []) {

        parent::__construct($context, $data);

    }


    protected function _prepareLayout()
    {
        return parent::_prepareLayout();
    }

}

<?php
MagentoFrameworkComponentComponentRegistrar::register(
    MagentoFrameworkComponentComponentRegistrar::MODULE,
    'Namespace_Support',
    __DIR__
);