We've done installs where the store owner wanted the ability to let customers reset the booking form. For example if you want to set the maximum stay of 14 days and you put in start and finish dates then decide to change the start date you can't choose anything that is further than 2 weeks out.
To fix this we can add a Reset button which clears the start and finish fields.
To add this functionality you can add the code to the booking-form.snippet.
At line 18 you can see where the reset button is defined.