Replace empty spaces

[WilliamB]

Hello, in a table I have empty spaces, I would like to fill them with the information of the table.

Table
Name	Function	Cat
William	55	A4
Sabastien	44	A5
Didier	78
Faben	74	A9
Mathias	25
I want this:
Name	Function	Cat
William	55	A4
Sabastien	44	A5
Didier	78	Didier-78
Faben	74	A9
Mathias	25	Mathias-25

Thanks a lot for your help

[PeterClemmensen · Accepted solution]

data have;
input Name $10. Function Cat $2.;
infile datalines;
datalines;
William   55 A4
Sabastien 44 A5
Didier    78   
Faben     74 A9
Mathias	  25   
;

data want;
    length Name $10 Function 8 Cat $50;
    set have;
    if missing(Cat) then Cat=catx('-', Name, Function);
run;