Coding Help.

Hey, I have been working on a Ai or Chatbot as you can call it, but I can't seem to stop people from spamming it so I need alittle help to try to keep that from happening.
If you think you can improve the code in any other way please let me know, I just started coding.
Did I mention this is a Add-on for the game Blockland.

The problem:

if (%msg $= "Hello")
        {
        commandToServer('messageSent',"Hi!");
        }

Code:

package Excella_3.0_WakeUp
{
	function clientCmdChatMessage(%a,%b,%c,%fmsg,%cp,%name,%cs,%msg) 
        {
		parent::clientCmdChatMessage(%a,%b,%c,%fmsg,%cp,%name,%cs,%msg);
                                if (%msg $= "Wake Up E3")
                                {
		                        if(%name $= "§gt. �µïl�êx")
                                        
	                            commandToServer('messageSent',"Excella: I'm awake! I'm awake! I was just resting my Powercells...");
                                ActivatePackage(Excella_3.0);
                                }

                                if (%msg $= "Shutdown E3")
                                {
		                        if(%name $= "§gt. �µïl�êx")
                                        
	                            commandToServer('messageSent',"Excella: But? Ah, ok.");
                                DeactivatePackage(Excella_3.0);
                                }
        }
};
ActivatePackage(Excella_3.0_WakeUp);

//Main Package Is Below...
package Excella_3.0 
{
	function clientCmdChatMessage(%a,%b,%c,%fmsg,%cp,%name,%cs,%msg) 
        {
		parent::clientCmdChatMessage(%a,%b,%c,%fmsg,%cp,%name,%cs,%msg);

        if (%msg $= "You Awake?")
        {
	     if(%name $= "§gt. �µïl�êx")
                                        
	    commandToServer('messageSent',"Excella: Yeah.");
        }

        //NOTE: It does not matter how many spaces or tabs you put inbetween, infront, or behind the code. It's just a factor of being neater, cleaner, and easier to read.
        
        if (%msg $= "Hello")
        {
        commandToServer('messageSent',"Hi!");
        }

        if (%msg $= "ClearAllBricks")
        {
	     if(%name $= "§gt. �µïl�êx")
                                        
	    commandToServer('messageSent',"Excella: Please Hold.");
        commandToServer('ClearAllBricks')
        commandToServer('messageSent',"Excella: Done!")
        }

        if (%msg $= "ClearSpamBricks")
        {
	     if(%name $= "§gt. �µïl�êx")
                                        
	    commandToServer('messageSent',"Excella: Please Hold.");
        commandToServer('ClearSpamBricks')
        commandToServer('messageSent',"Excella: Done!")
        }

        if (%msg $= "ClearBricks")
        {
	     if(%name $= "§gt. �µïl�êx")
                                        
	    commandToServer('messageSent',"Excella: Please Hold.");
        commandToServer('ClearBricks')
        commandToServer('messageSent',"Excella: Done!")
        }

        if (%msg $= "ClearFloatingBricks")
        {
	     if(%name $= "§gt. �µïl�êx")
                                        
	    commandToServer('messageSent',"Excella: Please Hold.");
        commandToServer('ClearFloatingBricks')
        commandToServer('messageSent',"Excella: Done!")
        }
    }
};

//Keybind to turn Excella(Chatbot) On/Off.
ActivatePackage(Excella_3.0);

if (!$Excella_3.0Bindings)
{
 $remapDivision[$remapCount] = "Excella_3.0";
 $remapName[$remapCount] = "Activate/Deacticate";
 $remapCmd[$remapCount] = "Excella_3.0Toggle";
 $remapCount++;
 $Excella_3.0Bindings=true;
}

$Excella_3.0Flag=0;
function Excella_3.0Toggle(%notdepressed)
{
 if (!%notdepressed) return;
 if($Excella 3.0Flag==0)
 {
  $Excella_3.0Flag=1;
  deactivatePackage(Excella 3.0);
  echo("Excella: Goodnight...");
  commandToServer('messageSent',"Excalla: Powercells are De-activating. ")
 } else
 if($Excella_3.0Flag==1)
 {
  activatePackage(Excella_3.0);
  $Excella_3.0Flag=0;
  exec("Add-ons/Client_Excella_3.0/Client.cs");
  echo("Excella: Why The Hell Did You Wake Me?!");
  commandToServer('messageSent',"Excella: Powercells are booting up!")
 }
}