Forums Scripts & Popups Need help with a simple script

Hello I want a script for my bot that responds with a nick

so if someone types
User: !hello TUSK3N
The output should be
Bot: Hello, TUSK3N!

etc

What it shouldnt do is if $2 is not a nick in the channel it shouldnt say anything.

So if it hasnt seen the nick it shouldnt trigger it.

Because if someone says something rude and my bot will repeat it its not good.