Update how did you hear options on the Booking Engine
Go into the CRM module.
On the left side panel select site configuration, then select CRM localization setup.
Click the hear about tab.
On the bottom right corner, beside the create new button, you will need to enter a code between 4 - 10 characters and then select the create new button.
Once added you will then need to add the name of your new option on the list and save changes.
The list on the left is the code and the list on the right is the option name.