private void createAction() {
        int abort = 0;
        String ledsagerName = txfLedsagerName.getText().trim();
        if (cbbKonference.getSelectionModel().getSelectedItem() != null) {
            String KonferenceName = cbbKonference.getSelectionModel().getSelectedItem().getName();
        } else {
            System.out.println("no Konference was selected");
            abort = 1;
        }
        if (abort == 0) {
            LocalDate arrivalDate = startDate.getValue();
            LocalDate endDate1 = endDate.getValue();
            Service.createTilmelding(arrivalDate, endDate1, deltager, cbbKonference.getSelectionModel().getSelectedItem());

            hide();
            //set lecturer status
            if (chbLecturer.isSelected()) {
                deltager.setLecturer(true);
            }
            //set hotel status
            boolean hotelIsSelected;
            if (chbHotel.isSelected()) {
                hotelIsSelected = true;
                if (cbbHotel.getSelectionModel().getSelectedItem() != null) {
                    Hotel hotel = cbbHotel.getSelectionModel().getSelectedItem();
                    deltager.setHasHotel(true);
                    deltager.setHotelName(hotel.getName());
                } else {
                    System.out.println("no hotel was selected");
                    abort = 1;
                }
            }else{
                hotelIsSelected = false;
                deltager.setHasHotel(false);}


                //set escort status
            if (chbLedsager.isSelected()){
                deltager.setHasEscort(true);
                deltager.setEscortName(ledsagerName);
                Ledsager ledsager = tilmelding.createLedsager(ledsagerName);
                tilmelding.setLedsager(ledsager);
            }else{
                deltager.setHasEscort(false);
            }

            if (tilmelding != null) {
                if (hotelIsSelected) {
                    Service.addHotelToTilmelding(hotel, tilmelding);
                }
            } else {
                if (hotelIsSelected) {
                    Service.updateDeltager(deltager, deltager.getName(), deltager.getAdress(), deltager.getCountry(),
                            deltager.getCity(), deltager.getTelephoneNr(), true, true, true, deltager.getEscortName(),
                            deltager.getLecturesName(), deltager.getFirma());
                }
            }
        }
    }