If I were you, I’d either :
2. Measure only step 3 as that’s a final step. Mark previous 2 steps as “key user actions”
@Jonathan M., There will be a new feature coming out down the road which is really cool. You will be able to leverage the User Session Query language and chart things into a Funnel graph so you will now be able to see 100% of users accessing Easy travel.com, check out a vacation, 50% of those users checked out a European Vacation, and 25% of the initial 100% actually booked a trip.
Unfortunately I do not have any screen captures of this new functionality but keep an eye out as its coming down the pipe!
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