To enter your reservation, click on the +Google Calendar icon on the bottom right of the calendar. Once you are in the calendar, look at the list on the right side and find the NAME of the calendar in which you want to enter your event. Click on the down arrow next to it, and chose “Display only this calendar” so that you can be sure you are entering your event on the correct calendar. If you don’t choose a specific calendar, the default will be on your own calendar, and then only you can see your event.