From The Collaborative International Dictionary of English v.0.48 [gcide]:
2. To enter the name of (any one) in a book for the purpose of securing a passage, conveyance, or seat; to reserve; also, to make an arrangement for a reservation; as, to be booked for Southampton; to book a seat in a theater; to book a reservation at a restaurant. [1913 Webster +PJC]
From WordNet (r) 3.0 (2006) [wn]:
Define.com is a PRIVATE SECTOR NONPROFIT EDUCATIONAL WEBSITE that PROMOTES WORLDWIDE ELECTRONIC DEMOCRACY, OPEN and TRANSPARENT GOVERNMENT and WORLDWIDE BANKING REFORM.
Eye and Pyramid BANKING REFORM CHALLENGE