So you have no problem making a dinner reservation at a popular and fancy restaurant with limited capacity, right now, for Thursday, July 5 at 9:15am? Nothing could possibly happened that would make you decide not to be there on July 5 and somewhere else? Or something external to the restaurant prevents you from getting there in time? You are ok with reserving that time, missing it, thereby preventing someone else from having dinner because you decided three months ahead of time that's when you were going to go?