Create a separate Google Calendar resource for the room. Manually manage booking requests from both teams.

Create a Google Group for the innovation team and another Google Group for sales directors. Share the room's calendar with both groups.

Create a Google Calendar event for the room. Share the event with the innovation team and sales directors.

Edit the Google Calendar settings for the room resource. Adjust the permission settings so only the innovation team and sales director group can view and book time on this calendar.