Originally Posted by
sodaisei
My MIL has apparently lots of united miles, but she doesn't know how to use these, and I don't have time to take care of this. She wants to visit us in Spain (From Japan) so I am looking for some kind of service that by paying some cash would let us know when there is award space. Can you refer me one?
Personally not in a position to make recommendations but see
Award booking services - a list and some reviews has a detailed wiki. That thread would be a better place to handle your query. Important to read most recent posts first.
As has been true for many travel services, the recent couple years have been tough on these providers.