Hello, I will be in northern/southern Tuscany and Umbria in mid-October. I am curious how necessary it is to make reservations for lunch? I am trying to set a "loose" itinerary, but it is so hard to know exactly how long it will take to get from one place to another and I don't want to be too restricted by set reservation times. If I show up at a popular restaurant for lunch at 1:30 without a reservation, should I expect it to be booked? Thanks in advance for any advice!