https://community.withairbnb.com/t5/Ask-about-your-listing/What-is-PNR-number-Lufthansa/m-p/2045179#M65636
https://community.withairbnb.com/t5/Ask-about-your-listing/What-is-PNR-number-Lufthansa/m-p/2045179#M65636
https://community.withairbnb.com/t5/Ask-about-your-listing/What-is-PNR-number-Lufthansa/m-p/2045179#M65636
https://community.withairbnb.com/t5/Ask-about-your-listing/What-is-PNR-number-Lufthansa/m-p/2045179#M65636
https://community.withairbnb.com/t5/Ask-about-your-listing/What-is-PNR-number-Lufthansa/m-p/2045179#M65636
https://community.withairbnb.com/t5/Ask-about-your-listing/What-is-PNR-number-Lufthansa/m-p/2045179#M65636
https://community.withairbnb.com/t5/Ask-about-your-listing/What-is-PNR-number-Lufthansa/m-p/2045179#M65636