We're trying to solve the problem of a) needing help in a store and b) not being able to find an employee.
Specifically, we want the service to handle both a) where is x? and b) what do I need to accomplish y or to make z?
http://www.helpping.co/
You're lost in the store, but there's a "magic" button in front of you.
Would you use it?
Yes, it's a problem, but it's along the lines of my microwave getting dirty over time, or needing to fill a car tire occasionally. I don't need or care about a service that only cleans microwaves or only fills tires.
If you want to improve on brick-and-morter, feet-in-the-store retail problems, why not, say, show me a big pinterest-style list of everything in every grocery store around me? That would save me some time instead of perusing up and down aisles and not being sure whether I should visit that farmer's market that sometimes has interesting stuff.