How does Kyber managed to swap coins easily?

Anyone with a significant and diverse portfolio of cryptocurrency assets can become sort of an private exchange on Kyber. Kyber call this component of the Kyber Network “Reserves”. Suppose Mr.A has a significant and diverse portfolio of crypto assets. Mr.A can decide to contribute, lets say, 10000ETH, 5000BNB, 200OMG to be part of Kyber “Reserve”. Mr.A then sets the exchange rates for coins that he wants to exchange with, lets say, ETH/BTC , BNB/XRP, and OMG/IOTA that is based on his perception of the future market. This is just one example of the many “reserve” exchanges can put up, as a result anyone can swap / trade coins and in the case of businesses by integrating Kyber into their system, they can accept a diverse sets of digital currency payments.