I did notice that too, MrMarcoos. Of course, Canada, New Zealand, and Australia also use dollars (as well as many other countries, I was surprised to see when I googled).
Interestingly (well, to me, anyway), the UK also used to use dollars, in a sense (according to wikipedia). Here is the quote:
"Usage in Great Britain
There are many quotes in the plays of William Shakespeare referring to dollars as money. Coins known as "Thistle dollars" were in use in Scotland during the 16th and 17th century, and use of the English word, and perhaps even the use of the coin, may have begun at the University of St Andrews. This might be supported by a reference to the sum of "ten thousand dollars" in Macbeth (Act I, Scene II) (an anachronism because the real Macbeth, upon whom the play was based, lived in the 11th century).
In 1804, a British five-shilling piece, or crown, was sometimes called "dollar". It was an overstruck Spanish 8 real coin (the famous 'piece of eight'), the original of which was known as a Spanish dollar. Large numbers of these 8-real coins were captured during the Napoleonic Wars, hence their re-use by the Bank of England. They remained in use until 1811. During World War II, when the U.S. dollar was (approximately) valued at 5 shillings, the half crown (2s 6d) became nicknamed a "half dollar" by US personnel in the UK."
Here's the link:
I'm uncertain from the OP what Turkish Airlines lied about.