Price Hike Strategy

In a show, seats are divided into columns with fixed barriers. People are sitting in each column. The columns are tagged 1 to $n$, where $n$ is the total number of seats in that column. Every person is holding a ticket with a tag number which is same as seat number. Seat number will be started from 1. Anyone can swap their position by giving Rs. 1000 to the next person sitting in that column but n