You’ll find the latest trip availability and status for the Essential Europe online at http://www.topdeck.travel/book/HTWE/apr-11-oct-11
To clarify ‘On request’ normally means that the trip is nearly full or close to the departure so we need to contact our suppliers before we can confirm any more bookings on this date. If a trip shows as ‘available’, it is on sale but not yet a guaranteed departure - of course as more people book onto these trips we are able to guarantee them, and very rarely do we have to cancel a tour (especially during the peak season when most of our trips get sold out!). ‘Guaranteed departure’ means that we have guaranteed it will go ahead.
Hope this helps