Unfortunately no since I'm still on a long trip

. The muslim patient that you had might be doing the additional (not obligatory) fasting after Id Mubarak. It's for a very noble cause since the purpose is to further strengthen the faith and to be a much better person (post Ramadhan) not just for themselves but also for other people they interact too.
Tbh, I'd like to do it too after my trip is done.
