For a better optimization, it is necessary to cooperate with the client. Specifically, the steps to follow are:
Ask the client competitiveness analysis (you may receive different requests but some other supplier has a better price than yours therefore he gets the sale)
Ask a file a mapped file product to verify that requests are sent to all and only the properties put available for that client
Ask traffic analiysis on their side: your client may have other clients to whom he resell your rates. Not all the clients have a good conversation rate therefore we can request to exclude those who only make queries without any bookings