The idea: A SaaS platform that allows hotel concierge to book their guests anything, be it last minute tickets to the opera, cultural excursions, tours or just a cab. Hotels can then get a small kickback for their recommendation, booking.
Also, if anyone here is in the hotel industry, do let me know if this is something you'd be keen to use
There are a bunch of them. Usually called virtual concierge services. Some are white-label providers who cater to vacation rental operations and small hotels. AirBnB has even gotten into the business in a way, offering "experiences" in addition to stays.
The most common services can be found from Google, Uber or guide book. Cell phone is a better point of contact in many cases.
Yet there are a lot of niches that concierges shall have a value. It shall be a social web that have user-generated demand and services.
If an application like this existed, it would replace the concierge. The concierge exists because they spend the time to establish those local relationships, make the direct contact, and vet the quality of the recommendation. The hotels are not interested in making money on this. Recommendations are a risky business for the hotel. If a hotel worker decides which cab company to call for you and the cab crashes, they may be liable for the injury to the guest because it was their decision on which service to use. As a concierge I carried my own personal liability insurance. I demanded a high standard from services I recommended (proof of their own insurance, interviewing customers). And yes, I got tipped by some service providers for some recommendations, and sometimes by guests. I didn't need a platform to manage local resources. I had a private notebook that made ME the asset.
If you're going to use a web site to do it, then book your own ancillary tours, rides, dinners, events using Expedia. Some booking services offer a concierge edition (like Open Table) that allowed me to book under other people's names. But that's about the only kind of tool I used (and I get the booking points). It was never the incentive of a few dollars from a service provider that made me choose them. It was always the delight of the guest. I worked for the hotel to delight guests. While I did get tips sometimes, most of the time I didn't. And that was just fine. My reputation as a "fixer" was more important to me than a few bucks of thanks.