Hi, Website Maker is an online site builder and as such you are limited to what is available on line. That being said, you should be able to bring a contact form in to your site, but it is not an application, it is a widget. So, you create your form page, then drag the form widget to the page. Then you should get a choice to either create the form using a free on line form maker and you may have to choos one, or purchase the online form maker to create a highly customized form. I do not use this product mostly because I don't like on line site designer software but it is pretty much the same as purchasing a Pc based application with some limitations. Read your online manual especially the section on "Widgets" and you should be able to figure it out.
Look in the pdf manual for Website Maker - you did not specify which version you have - so you will need to search for Contact form and you will find that it is an extra that is added to the desired page.