Self-service booking system comprising at least one display device (2-19) designed as an electronic price display tag, comprising + a storage stage for storing a product data set (PD1-PD3) received during communication with a base station via a first radio interface of the display device (2-19), and + a second radio interface for communication, in particular for RFID or NFC communication, with a self-service booking device , + wherein the display device (2-19) is designed to process a self-service booking request received from a self-service booking device for transmission of the product data set (PD) via the second radio interface , and comprising at least one self-service booking device , comprising - a device radio interface compatible with the second radio interface for communication, in particular for RFID or NFC communication, with said display device (2-19), and - a control stage for controlling a self-service booking request via the device radio interface to the display device (2-19) for transferring a product data set (PD) from the display device (2-19) via the device radio interface to the self-service booking device , wherein - the control stage is designed to carry out a payment transaction for a product data set (PD) transmitted by a display device (2-19), characterized in that , the display device (2-19) is designed, when processing a self-service booking request, to receive and store user and / or device identification data (ID) for identifying the user of the self-service booking device and / or the self-service booking device via the second radio interface . + a storage stage for storing a product data set (PD1-PD3) received during communication with a base station via a first radio interface of the display device (2-19), and + a second radio interface for communication, in particular for RFID or NFC communication, with a self-service booking device , + wherein the display device (2-19) is designed to process a self-service booking request received from a self-service booking device for transmission of the product data set (PD) via the second radio interface , and comprising at least one self-service booking device , comprising - a device radio interface compatible with the second radio interface for communication, in particular for RFID or NFC communication, with said display device (2-19), and - a control stage for controlling a self-service booking request via the device radio interface to the display device (2-19) for transferring a product data set (PD) from the display device (2-19) via the device radio interface to the self-service booking device , wherein - the control stage is designed to carry out a payment transaction for a product data set (PD) transmitted by a display device (2-19), - a device radio interface compatible with the second radio interface for communication, in particular for RFID or NFC communication, with said display device (2-19), and - a control stage for controlling a self-service booking request via the device radio interface to the display device (2-19) for transferring a product data set (PD) from the display device (2-19) via the device radio interface to the self-service booking device , wherein - the control stage is designed to carry out a payment transaction for a product data set (PD) transmitted by a display device (2-19), <EOS>