according to this wiki entry the current falcon cycles is producing machines under quite a variety of badges. scroll down to the "present" heading:
https://en.wikipedia.org/wiki/Falcon_Cycles
the frameset under discussion may have looked much like this ex-works. colour may match that of the paint inside seat tube. it not only has the same lugs, seatstay cap and dropouts but the distinctive no-slide pib as well:
http://tinyurl.com/lf2b2he
wrt halfords - is that a sakae ringyo apex chainset she is wearing? had not previously seen this crown on a falcon product; she is a bit later than the examples am familiar with.