DALLAS (AP) — American Airlines is suing a travel website that sells tickets that let people save money by exploiting a quirk in airline pricing. American sued Skiplagged Inc. in federal court in Fort Worth, Texas, this week, accusing the website of deception.

Dear [Boss's Name], I hope this email finds you well. I am writing to request your approval for my upcoming travel plans. I believe the trip is essential for [provide a brief explanation of the purpose of your travel, such as attending a conference, meeting with clients, etc.].

Corporate flight booking includes the booking of flights tickets for business related activities. The employees travel for various events, client meetings, and other branding purposes regularly. Hence, airlines provide numerous options to book affordable flights for such activities known as corporate flight bookings.

A city ticket office (CTO), booking office, or city ticket counter is a retail office for an airline, essentially a travel agency specializing in that particular carrier's flights. Until the 1990s, many major airlines had storefronts in luxury shopping districts.