https://www.devex.com/people/premium-option-what-does-business-class-mean-on-southwest-airlines-2101627
https://support.inkling.com/hc/en-us/community/posts/32027176661389-What-is-the-cheapest-day-to-book-with-%F0%9D%94%BC%F0%9D%98%85%F0%9D%97%BD%F0%9D%97%B2%F0%9D%97%B1%F0%9D%97%B6%F0%9D%97%AE
https://support.inkling.com/hc/en-us/community/posts/32027179863693-How-Do-I-Reach-Sage-500-Support-Number-FAQs-Solution