Thai Airways – The Nation Airline in Thailand.
Thai Airways International Public Company Limited
Thai Airways International Public Company Limited (บริษัท การบินไทย
จำกัด (มหาชน) found in 1 May 1960. Many people call as “Thai”. This
airline is the older airline in Thailand. The headquarter offices is
establish in Vibhavadi Rangsit Road, Chatuchak District, Bangkok. Thai
Airways is a founding member of the Star Alliance.

The website of this airlines is  www.thaiairways.com
Thai Airlines have three class of booking as economy class, business
class, and first class. Class of seat is depend on the destination.

Source of picture: https://en.wikipedia.org/wiki/Thai_Airways

The airline also have Royal Orchid Plus Program is person who travel
with this airline or partner airline can correct miles (mile can be
correct depend on type of the tickets). After traveler correct miles
enough then they can earn free tickets or gifts.