G.R. No. 170369. June 16, 2010.

MAIN TOPIC – Contracts – Essential Requisites of Contract

FACTS

In July 1975, Korean Air Co., Ltd. hired Adelina A.S. Yuson (Yuson) as reservations agent and  was promoted as passenger sales manager in 1999. Korean Air had an International Passenger  Manual (IPM) which contained, among others, travel benefit to its employees. In 2000, Korean  Air suffered a net loss. In 2001, in order to cut costs offered its employees an early retirement  

program (ERP). Yuson accepted the offer for early retirement, however she was excluded from  the ERP because she was retiring on 8 January 2002. Yuson claimed that Korean Air was bound  by the perfected contract and accused the company of harassment and discrimination. Korean  Air answered that ERP was not an absolute offer but rather an invitation to possible qualified  employees subject to the approval and acceptance by the Company.