I suggest you conduct some searches in the NETWORK section of CFL. There you can find out people's background and interests. DISCUSS is not a people finder. Outside of CFL you need to be talking to travel industry associations, travel professionals, travel companies, and travelers...basically anyone who might use your service. Let them define what they want and need, and validate your marketing strategy.
Realize that without dramatic differentiation, you are competing with companies that spend tens of millions of dollars to exclude you from the market.