Hi Liz,
I flew from Manchester to Milan couple of years ago on theway to Lake Como. There were others on the flight - some going to Como, others to Lake Garda It is very unlikely you will be on your own, but even if you are you will be met at Milan airport by the rep and taken by taxi to your destination. They don't expect you to find you own way there.! If you're worried phone Just You - give your holiday ref no. and they will advise you.
Regards, Pat