If you are seeing 2 calendars on your booking page, it's probably because you are using more than one method to display the calendar. Go through the following methods and pick one of the methods:
There are multiple ways to display your calendar.
- Via the Calendar Page setting in Events > Settings > Viewing Events tab
- Via the shortcode, under Events > Settings > Advanced > Shortcodes
- Via the Upcoming Events widget under Appearance > Widgets
- Via the Superwidget addon, under Widget Creator (used to display your calendar on other websites).