Help needed

I need to create a booking page similar to https://ukairporttransferservices.co.uk/

The booking page should display the distance from point A to point B.

I’ve considered using a map widget with logic to ensure it only appears on the booking page, but I’m seeking guidance on configuring the Google Maps API correctly for this purpose.

The page I need help with: [log in to see the link]