Booker joined the Royal Naval Air Service in 1915. Most of his victories were achieved while flying the Sopwith Triplane he called "Maud." On 11 August 1917, Booker obtained his 21st victory when he and William Jordan shot down an Albatros D.V piloted by Adolf von Tutschek. Tutschek survived the event.
Flying a Sopwith Camel, Booker shot down three Fokker D.VII aircraft on 13 August 1918 but died from wounds received the same day when he was shot down by Ulrich Neckel of Jasta 12.