No problem.
I got the impression it was handling tours and the reservations during such tour. So I did the Customer > Destination(s) > Hotel(s). Side note, I originally posted a Hotel Reservation Data Model and then it was explained that the Reservations were not the primary.
As to the prefixes, I too have been doing for more years then I care to mention and 99.9$ of my Functions and code already take them into account. So, if I changed now, not that I would to as I like them, I would have have tons of re-usable code and Functions to update. Well, maybe not Functions as only about .5 % take actual table and\or field names into account.