You should enter the first and last name of the passenger exactly as they appear on the government-issued photo ID (driver's license or passport) that you plan to present to the airline officials at check-in.
Passengers will encounter difficulties passing through airport security or can be denied boarding if their names do not match those on the presented ID. Corrections are not permitted once your tickets have been issued.
If there is not enough space to enter your name, please contact the airline directly. To avoid security problems, we do not recommend modifying your name.