在Google电子邮件标记中更新/取消活动

Question

我可以使用以下标记成功将事件添加到HTML确认电子邮件中：

{
"@context": "http://schema.org",
"@type": "EventReservation",
"reservationNumber": "9973180",
"reservationStatus": "http://schema.org/Confirmed",
"underName": {
    "@type": "Person",
    "name": "John Smith"
},
"reservationFor": {
    "@type": "Event",
    "name": "Test Event"
},
"startDate": "2018-04-19T11:30:00+03:00",
"endDate": "2018-04-19T12:30:00+03:00",
"location": {
    "@type": "Place",
    "name": "",
    "address": {
        "@type": "PostalAddress",
        "streetAddress": "347 West 55th St",
        "addressLocality": "New York",
        "addressRegion": "NY",
        "postalCode": "10019",
        "addressCountry": "US"
    }
}
}

但是，我无法：

1. 使用不同的startDate和modifiedTime

发送相同的标记来更新活动

2. 通过reservationStatus = http://schema.org/Cancelled和modifiedTime

发送相同标记来取消活动