Oliver Daemen, 18 years old, will become the youngest person to travel to space.
Daemen will join Amazon AMZN founder Jeff Bezos, his brother, Mark, and pilot Wally Funk, who will become the oldest person to travel to space at 82 years old.
Daemen will replace the anonymous $28 million winner of Blue Origin's auction, who chose a later mission "due to scheduling conflicts," according to Blue Origin.
Jeff Bezos, founder of Blue Origin, announced on June 7 that he will be flying on the first passenger flight with his brother, Mark.
New Shepard, the spacecraft, is named after the first American to go into space, Alan Shepard.