It is unlawful for any travel agent to knowingly promote travel services, as defined in § 59.1-445, for the purposes of prostitution or any act in violation of an offense set forth in subdivision 1 of the definition of Tier III offense as defined in § 9.1-902, made punishable within the Commonwealth, whether committed within or without. Violation of this section shall constitute a separate and distinct offense, and any person violating this section is guilty of a Class 1 misdemeanor. Punishment for a violation of this section shall be separate and apart from any punishment received from any other offense. For the purposes of this section “travel agent” means any person who for a consideration consults with or advises persons concerning travel services in the course of his business.