Complex sentence: Rehlat.com was founded and established by Bader Al-Bader as an extension of Bader's family-owned travel agency, which was established in 1994.
Split into simpler sentences: Rehlat.com was founded and established by Bader Al-Bader. The online travel agency was founded as an extension of Bader's family-owned travel agency, which was established in 1994.