How can i make 2D integer array in Verilog?

I have to store three variables in one array

for example, if 3 people choose to take on the elevator on 4th floor and get off on 7th floor, I have to store '3' - which is the number of people- in a 2D array[4,7]

reg [10:0] array [10:0] <- does not work cuz i can only store 2 values.

If making 2D integer array is impossible in Verilog, please teach me how to track the 3 values.

I have to know how many people want to get on on Nth floor and get off on Mth floor.