Depends whats on your contract. Since there is a yearly ticket, the company needs us to send our leave request 2 months in advance or 6 months if we claim our leave during the Eid or year end holidays.

We either get a PO to our travel agent or an email from the travel agent confirming our ticket.

Some of the staff get an allowance for their ticket in the monthly salary.

The above is our company process. However, if the leave is not taken, we loose half the leave period for the year and also the air ticket.