Today's Hotel Booking Trends
Today's online world most of the guest book rooms online and also preferred to book directly with hotel instead of having one intermediary agent.
When there is no online booking facility in hotel website they book through third party OTAs though he/she is your direct customer you are paying around 20% to an OTA. and also you are sending your customer to the open market where thinking might get changed in the last minute the user might book room with your competitor.
Providing online booking facility you can retain your existing customer and increase your direct booking and grow your customer base.