A system to provide device identifier dependent operation processing of packet based data communication between a client computing device and a service provider device using a data processing system, comprising: a natural language processor component executed by the data processing system to receive, via an interface of the data processing system, data packets comprising an input audio signal detected by a sensor of a client computing device having a device identifier; the natural language processor component to parse the input audio signal to identify a request for service and a trigger keyword corresponding to the request; a content selector component executed by the data processing system to receive the trigger keyword identified by the natural language processor and to select, based on the trigger keyword, a content item via a real-time content selection process; a link generation component to: perform a lookup of a device identifier of the client computing device in a database storing account identifiers established for a service provider device corresponding to the content item; determine an absence of the device identifier of the client computing device in the database based on a null command received in response to the lookup; generate, a virtual identifier for the client computing device and link the virtual identifier to the device identifier, the virtual identifier being distinct from the client computing device identifier; and route data packets that carry, in a payload section, a data structure comprising an identifier field and a new account field to the service provider device, wherein the identifier field comprises the virtual identifier, and the new account field comprises instructions that cause the service provider device to establish an account for the client computing device based on the virtual identifier; and the data processing system to receive, from the service provider device, an indication that the service provider device established the account using the virtual identifier, and performed an operation with the client computing device. a natural language processor component executed by the data processing system to receive, via an interface of the data processing system, data packets comprising an input audio signal detected by a sensor of a client computing device having a device identifier; the natural language processor component to parse the input audio signal to identify a request for service and a trigger keyword corresponding to the request; a content selector component executed by the data processing system to receive the trigger keyword identified by the natural language processor and to select, based on the trigger keyword, a content item via a real-time content selection process; a link generation component to: perform a lookup of a device identifier of the client computing device in a database storing account identifiers established for a service provider device corresponding to the content item; determine an absence of the device identifier of the client computing device in the database based on a null command received in response to the lookup; generate, a virtual identifier for the client computing device and link the virtual identifier to the device identifier, the virtual identifier being distinct from the client computing device identifier; and route data packets that carry, in a payload section, a data structure comprising an identifier field and a new account field to the service provider device, wherein the identifier field comprises the virtual identifier, and the new account field comprises instructions that cause the service provider device to establish an account for the client computing device based on the virtual identifier; and perform a lookup of a device identifier of the client computing device in a database storing account identifiers established for a service provider device corresponding to the content item; determine an absence of the device identifier of the client computing device in the database based on a null command received in response to the lookup; generate, a virtual identifier for the client computing device and link the virtual identifier to the device identifier, the virtual identifier being distinct from the client computing device identifier; and route data packets that carry, in a payload section, a data structure comprising an identifier field and a new account field to the service provider device, wherein the identifier field comprises the virtual identifier, and the new account field comprises instructions that cause the service provider device to establish an account for the client computing device based on the virtual identifier; and the data processing system to receive, from the service provider device, an indication that the service provider device established the account using the virtual identifier, and performed an operation with the client computing device.