I want to know that What is a "real-life" example in the United States of a price-searcher (business firm) that currently practices what the textbook defines as "price discrimination" (and is also referred to as "differential pricing") at one particular (the same) location?

please include that "the specific place (street address, website, or phone app) where the firm sells their product, identify at least two different prices that the firm charges for the same (basic) product, and mention at least two different groups of buyers who pay these prices." as possible as you can.