def validate_ticket_qty(qty):
	"""
	validate that the ticket quantity is between 1 and 100 (inclusive)
	:param qty: the qty of tickets
	:return: an error message (if any) or nothing if the quantity is valid
	"""
	errors = []
	if int(qty) <= 0:
		errors.append("Ticket quantity must be greater than (0)")
	if int(qty) > 100:
		errors.append("Maxiumum ticket quantity is (100)")
	return errors