public String toString(){
		String str = "\n -------- \n";
		str += "Festival name: " + name + "\n";
		str += "Date of festival " + date + "\n";
		str += "Runs from " + startTime + " to " + endTime + "\n";
		if(stages.isEmpty())
			str += "No stages made. \n";
		else
			for(Stage s : stages){
				str += s.toString();
			}
		if(artists.isEmpty())
			str += "No artists made. \n";
		else
			for(Artist a : artists){
				str += a.toString();
			}
		if(performances.isEmpty())
			str += "No performances made. \n";
		else
			for(Performance p : performances){
				str += p.toString();
			}
		
		return str;
	}