35 Advertising, in particular relating to the travel-, hotel and transport industry; public relations, in particular relating to the travel-, hotel and transport industry; compilation, systemization, updating and maintenance of information and data, in particular relating to the travel-, hotel and transport industry, in computer data bases; research in computer files; collection, systematization and compilation of business data and information in computer databases; organizational business advice relating to conferences, congresses, conventions and other events; publication of printed matter in electronic or other form, for advertising purposes; price comparison services; arranging of contracts, for others, for the providing of services, in particular relating to the lodging of guests; organizational and professional business consultancy relating to travel agent and tour operator