magento-test/app/code/Magento/Sales/Test/Mftf/Section/StorefrontGuestOrderSearchSection.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--
 /**
  * Copyright © Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
-->

<sections xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:noNamespaceSchemaLocation="urn:magento:mftf:Page/etc/SectionObject.xsd">
    <section name="StorefrontGuestOrderSearchSection">
        <element name="orderId" type="input" selector="#oar-order-id"/>
        <element name="billingLastName" type="input" selector="#oar-billing-lastname"/>
        <element name="findOrderBy" type="select" selector="#quick-search-type-id"/>
        <element name="email" type="input" selector="#oar_email"/>
        <element name="zip" type="input" selector="#oar_zip"/>
        <element name="continue" type="button" selector="//*/span[contains(text(), 'Continue')]"/>
    </section>
</sections>