To edit your Facebook Page's call-to-action button:
1) From your News Feed, click Pages in the left menu.
2) Go to your Page.
3) Click the call-to-action button below your Page's cover photo and select Edit Button.
4) Select "book now" option
5) Select Link to website option
6) Copy your booking link from the instructions below or alternatively copy your website booking page url (i.e. mymarina.com/transientdockage)
7) Paste your booking link into the text box
8) Click Save. Congratulations, you can now take bookings directly from Facebook!