Luna is missing since Dec 19th Blanchardstown area!

My cat Luna has been missing since around the 19th of December from the Blanchardstown area. She is micro-chipped but lost her collar just before she went missing. She is a petite brown tabby with a distinctive ginger stripe on her head. She is 3years old and spayed.  Any information about her is greatly appreciated. Phone: 0851455796.