[Entity:ParcelDelivery]
CARRIERNAME=CarrierName
TRACKINGNUMBER=TrackingNumber
SELLERNAME=?SellerName
<![CDATA[
  {
    "@type": "ParcelDelivery",
    "carrier": {
        "@type": "Organization",
        "name": "CARRIERNAME",
        "url": ""
    },
    "partOfOrder": {
        "@type": "Order",
        "seller": 
        {
            "@type": "Organization",
            "name": "SELLERNAME"
        }
    },
    "trackingNumber":"TRACKINGNUMBER"
  }]]>

[Output:Json]
SEPARATOR=<![CDATA[,]]>
PARCELDELIVERIES=!JOIN(SEPARATOR,ParcelDelivery)
BOOKING_AGENT=?!META(+from)
PHONE_NUMBER=?!META(+senderPhone)
<![CDATA[{
  "@context": "http://schema.org",
  "@type":"ReservationPackage",
  "bookingAgent":{
    "@type":"Organization",
    "name": "BOOKING_AGENT",
    "telephone": "PHONE_NUMBER"
  },
  "reservation": [PARCELDELIVERIES]
}]]>