When you’re in Pages, if the Font pane is not open, type Command+T. There should be four columns showing. If not, grab the bottom right corner and widen the pane. In the first column, Collections, select All Fonts. In the second column, Family, select Futura. The third column, Typeface, will list what’s available. If you and your colleague do not have identical lists, Pages will substitute another face for the missing one. Either use another typeface or install the missing Futura font, if you must use Futura.
Walt