If you're not owner, all you can really do is suggest.
It is tough to deal with late pts, especially in metro areas where traffic/parking is substantial and many are late.
I've seen the no-show fee stated in appointment reminders, but never actually enforced (ppl would just do charge back on their cred card as stated... and that costs a ton for the business). We just politely tell ppl arriving late or no show they need to reschedule, and that'll usually be 2+ weeks out. We will call the rare no-show if they are generally reliable/likeable or have an issue such as wound/injury, or we just leave it alone if not.
We do 15mins no-show / resched policy, very rare exceptions (called and said would be late, travel and/or problem that's bad to resched... early post-op, wound, pre-op, etc).
It helps to schedule your lunch longer. Again, probably just a dream unless you are owner.
I have seen extremely busy DPM offices that hugely overbook do pts from 8a-12p or 9a-12p and then 2p-5p or 2p-6p and still only get roughly an hour lunch as the morning gets so backed up on pts and notes.
For mine, borrow from that idea but schedule reasonable: we do 11am last morning appt start, afternoon pts start 1pm, we always get to have at least 1hr lunch/catch up time. Our appt blocks end at 4pm or 3pm Fridays (so last appt start is 330 or 230p)... all pts always out by 5p/4p at very latest, staff leave soon after). I think having a 'standard' hour lunch 12-1p with appts slated to begin right up to 1130, 1145, etc is a recipe for disaster... but tons of places do it... PPs, MSGs, hospitals, etc. It is asking for short lunch, no lunch, or notes through lunch. That is a recipe for unhappy staff and mizzzzerable docs.
The way I see it, ppl need our help... they can work with our sched. It works well. Smart scheduling can't guarantee a good day of appts, but bad scheduling can sure make that good day unlikely. If ppl must be seen next day for trivial stuff or keep re-scheduling or being late, if they want nothing but an 1145am or a 445pm... then they can see the nearby associate mill.