When planning my budget I really need a rough idea as to how many people are seriously thinking about attending our wedding in October. All I am getting is secondhand and third-hand comments from people about school schedules or work, or the distance. One minute they are planning on coming, then a few days later they are not sure. I wanted to find a polite way to ask on my save the dates if people were interested in coming (so I can have a rough idea head count.) I need to book my venue as soon as possible as it is a specialty location. I don't want to be rude but I really need my venue set to start my other planning even my wedding colors depend on the venue. The save-the-dates are vintage airplane boarding passes where I was going to have them tear off the perforated side and mail back if they are seriously considering coming, I just can't figure out how to word it. Thanks in advance for any advice or suggestions!