Hier mein kompletter OnDialogResponse Code...
public OnDialogResponse(playerid, dialogid, response, listitem, inputtext[])
{
    if(dialogid==DIALOG_LOGIN)
	{
	    if(response==0)
	    {
	        SendClientMessage(playerid,BLAU,"Du hast den Vorgang abgebrochen.");
	        Kick(playerid);
	        return 1;
	    }
	    if(response==1)
	    {
	        if(!strlen(inputtext))
	        {
	            SendClientMessage(playerid,BLAU,"Das Passwort war nicht lang genug.");
             	ShowPlayerDialog(playerid,DIALOG_LOGIN,DIALOG_STYLE_INPUT,"Login","Dein Account wurde gefunden. Gib bitte das Passwort ein.","Login","Abbrechen");
	            return 1;
	        }
	        else
	        {
	            new Spielerdatei[64];
	            new name[MAX_PLAYER_NAME];
	            GetPlayerName(playerid,name,sizeof(name));
	            format(Spielerdatei,sizeof(Spielerdatei),"/ACCS/%s.ini",name);
				Login(playerid,inputtext);
				SetTimer("LifeTime",60000,1);
		        return 1;
			}
	    }
	}
	if(dialogid==DIALOG_REGISTER)
	{
	    if(response==0)
	    {
	        SendClientMessage(playerid,BLAU,"Du hast den Vorgang abgebrochen.");
	        Kick(playerid);
	        return 1;
	    }
	    if(response==1)
	    {
	        if(!strlen(inputtext))
	        {
	            SendClientMessage(playerid,BLAU,"Das Passwort war nicht lang genug.");
	            ShowPlayerDialog(playerid,DIALOG_REGISTER,DIALOG_STYLE_INPUT,"Registrieren","Gib bitte das gewünschte Passwort ein:","Register","Abbrechen");
	            return 1;
	        }
	        else
	        {
		        Register(playerid,inputtext);
		        return 1;
			}
	    }
	}
 if(dialogid==DIALOG_HELP)
	{
	    if(response==0)
		{
            new string[256];
			new sendername[MAX_PLAYER_NAME];
			GetPlayerName(playerid, sendername, sizeof(sendername));
	    	SendClientMessage(playerid,0xFFFF00FF,"Alle Administratoren die Online sind wurden benachrichtigt, das du Hilfe benötigst.");
            format(string, sizeof(string), "%s benötigt Hilfe! Du kannst ihm mit /aw antworten!", sendername);
			SendAdminMessage(0xFFFA00FF, string);
			return 1;
		}
		if(response==1)
		{
		    SendClientMessage(playerid,BLAU,"Schön, das du alleine zurecht gefunden hast.");
		    return 1;
		}
	}
}
if(dialogid == 20)
{
	switch(listitem)// Checking which item was chosen
	{
		case 0:
		{
			if(GetPlayerMoney(playerid) < 20)return SendClientMessage(playerid,0xFFFFFF,"Du hast nicht genug Geld!");
			GivePlayerMoney(playerid, -20);
			SetPlayerHealth(playerid, health+10);
		}
		case 1:
		{
			if(GetPlayerMoney(playerid) < 50)return SendClientMessage(playerid,0xFFFFFF,"Du hast nicht genug Geld!");
			GivePlayerMoney(playerid, -50);
			SetPlayerHealth(playerid, health+20);
		}
		case 2:
		{
			if(GetPlayerMoney(playerid) < 80)return SendClientMessage(playerid,0xFFFFFF,"Du hast nicht genug Geld!");
			GivePlayerMoney(playerid, -80);
			SetPlayerHealth(playerid, health+30);
		}
		case 3:
		{
			if(GetPlayerMoney(playerid) < 100)return SendClientMessage(playerid,0xFFFFFF,"Du hast nicht genug Geld!");
			GivePlayerMoney(playerid, -100);
			SetPlayerHealth(playerid, health+45);
		}
		case 4:
		{
			if(GetPlayerMoney(playerid) < 30)return SendClientMessage(playerid,0xFFFFFF,"Du hast nicht genug Geld!");
			GivePlayerMoney(playerid, -30);
			SetPlayerHealth(playerid, health+15);
		}
		case 5:
		{
			if(GetPlayerMoney(playerid) < 20)return SendClientMessage(playerid,0xFFFFFF,"Du hast nicht genug Geld!");
			GivePlayerMoney(playerid, -20);
			SetPlayerHealth(playerid, health+11);
		}
		case 6:
		{
			if(GetPlayerMoney(playerid) < 50)return SendClientMessage(playerid,0xFFFFFF,"Du hast nicht genug Geld!");
			GivePlayerMoney(playerid, -50);
			SetPlayerHealth(playerid, health+20);
		}
		case 7:
		{
			if(GetPlayerMoney(playerid) < 30)return SendClientMessage(playerid,0xFFFFFF,"Du hast nicht genug Geld!");
			GivePlayerMoney(playerid, -30);
			SetPlayerHealth(playerid, health+15);
		}
		case 8:
		{
			if(GetPlayerMoney(playerid) < 35)return SendClientMessage(playerid,0xFFFFFF,"Du hast nicht genug Geld!");
			GivePlayerMoney(playerid, -35);
			SetPlayerHealth(playerid, health+18);
		}
	}
}