Help needed

I need to produce a booking site like this http://www.247airporttransfer.co.uk/booking.html, that can present distance from point A to point B.
I just need it on the booking page on.
I know I can use widget logic for the map result to display on just one page, its the configuration of the google name that I need help with.

total newbie in WordPress, but loving it so far.

http://ww.wp.xz.cn/extend/plugins/comprehensive-google-map-plugin/