The way you edit this page will depend heavily on your booking system.
If you prefer they use your booking system (ex. Vagaro) entirely to schedule their appointment, you can switch all of the "Book Your Appointment" buttons and links to link up to your [Vagaro/GlossGenius/etc.] webpage using "Click Actions" tab on the right.
If your booking system has an "embed code" feature (most do!), you can embed the scheduler directly into this very webpage. To do that, you would add an embed code box (from the bottom center of the Showit builder) and paste in the code from your booking system.
If you prefer to schedule appointments via phone, you could simply replace this text box with your phone number and give any additional instructions you might want them to know about booking an appointment.
If you're not ready to use a booking system but you still want guests to be able to request appointments through your website, you can use the pre-built form below and just replace this text box with any information regarding scheduling appointments that you might want your guests to know. When guests fill out the following form, their message will go to your email that you have set up associated with your Showit account.