Franchises rarely come with guaranteed work. The Franchise is for the right to operate the Franchisor's 'tried and proven' system.
McDonalds don't line up customers for their Franchisees
ServiceMaster don't provide lists of people wanting domestic help
Chem Dry don't supply a customer base of people wanting their carpets cleaned
There have been window cleaning Franchises where the Franchisee was expected to market the service and acquire their own customers. PowaKlene was one, started by a chap called Paul C Smith who spent a fortune on setting it up - had a cartoon character Super Man look-alike as his logo. I know he set up two Franchises, I had a conversation with the one in Scotland who told me he only ever paid his first royalty invoice then Smith disappeared.
Haven't heard of him since.
There's no real reason why such a system wouldn't work - it works fine in loads of other 'repeat business' situations.
I decided when I devised mine to include a guarantee of as much work as the Franchisee could manage as my USP (Unique Selling Point). So far (8 yrs+) it's working