Default to selected cities in the Enabled Cities List

Hi,

In my current settings, we have enabled only selected cities and selected countries on the admin (because we only work in those specific cities).

But when someone create a new place and click the google auto-suggest, it will automatically add a new city in the city drop down option. Is there anyway to prevent that ?

i.e. enabled Country: Indonesia, enabled City : Bali.
Someone searches for Kuta, and clicks on the drop down. and the cities will become Kuta (when we only enabled Bali).

The main objective is to make them stick to only Bali and not adding more cities.
i.e. Google auto-search returns Cities = Kuta, check if using selected cities only -> check if Kuta is on the selected Cities, if not in the list then don’t insert into the drop down (or additionally, have a flag in admin, if we want to automatically add new cities if it does not exist).

Is there a way to enable this ? Thank you.