https://www.turkishairlines.com/ja-int/flights/stopover/

PNR と　姓　を入力したら　「あなたのチケットでは予約できません」と表示された。

20時間以上のコネクション　　の解釈に問題がありそうだ。

Who is eligible?
Within the scope of the Stopover in Istanbul program, our passengers with a connection period of at least 20 hours can stay free of charge and accumulate unforgettable memories in Istanbul, which stands out with its historical and cultural heritage. The voucher required for the stay are issued after the application is complete.

この英文では誤解する。

ダメもと承知で、メールでも申請しておいた。

Dear Sir/ Madam

My name is Gary. 

I booked/paid Turkish Airline’s air flight ticket as followings;

1) Departure from IAD (USA Washington DC) on April 24, 2023 to SOF
2) Return from SOF on May 10 to IST (stopover in Istanbul (IST) over 4 nights ), and then back to IAD on May 14,2023.

I understand that I am entitled to get two free nights hotel reservation.

Although I have not yet received e-ticket number, I already received PNR, so this is to apply my request for two free nights hotel reservation in advance.

//////////////


name-surname, : Gay

reservation code (PNR) : SXXXED

ticket number: yet to be informed

desired accommodation dates: two nights of May 10 and May 11, 2023 (May 10 check in , May 12 check out)

preferred room type; twin type (two single beds)

telephone number : +810xxxx

e-mail address : xxxxxx

//////////////

Regards

以上　(1/1 記)