[xir]

You can do it like this

pawn Код:

COMMAND:dialog(playerid, params[])
{
    if(!IsPlayerInRangeOfPoint(playerid,2.0, the coords of the 24/7 store)) return SendClientMessage(playerid, -1, "You need to be in the 24/7 store"); // the "2.0" is how many meters the player should be in before the command is available
    else
    {
        ShowPlayerDialog(playerid, 999, YourDialogStyle?, "Your dialog", "Select", "Exit"); // change it to your style 
        return 1;
    }
}