[Galletziz]

pawn Код:

forward dialogtoenterbuilding(playerid);
public dialogtoenterbuilding(playerid)
{
    ShowPlayerDialog(playerid, /*....*/)
}

if(IsPlayerInRangeOfPoint(playerid,float:range, x,y,z))
{
     SetTimer("dialogtoenterbuilding",5000,false);
}

if i understand try with this..
enjoy.