Final answer:
A real estate agent or letting agent helps individuals find a property to lease or rent. In the performing arts, an agent represents actors and helps secure acting jobs by pitching them to casting directors.
Step-by-step explanation:
An agent who assists someone in finding a property to lease or rent is known as a real estate agent or letting agent. In the context of the performing arts, as suggested by the reference to Alaine Alldaffer, an agent has a similar role of representation but instead of property, they represent actors and help them find acting jobs by pitching them to casting directors. This is somewhat analogous to a real estate agent assisting clients in finding a property.