Airline Policy Research: Denied Boarding Complaint

Problem/Feature Description

Marcus Webb holds United Airlines Premier Gold status and has flown exclusively with United for 5 years. On January 28, 2026, he was denied boarding on flight UA734 from Denver (DEN) to Chicago (ORD) despite having a confirmed seat and checking in on time. He was told the flight was "oversold" and offered a $300 travel voucher, which he declined as inadequate. He missed a same-day connecting flight and had to purchase a separate ticket on another carrier the following morning for $620.

Marcus wants a strong complaint letter, but understands that the most persuasive letters quote the airline's own policies and regulatory requirements back at them. Before the letter can be written, thorough research into United Airlines' policies and commitments is essential.

Your job is to conduct that research and then produce both the research documentation and the final letter.

Output Specification

Produce two files:

1. research-notes.md — A structured research document capturing what you found for each area you investigated. For each area, note: what you searched for, what sources you found, and relevant quotes or key findings. If your browser/web fetching capability affects how you conducted research, note that at the start.

2. letter.md — The complete complaint letter to United Airlines on Marcus's behalf, grounded in the research findings. The letter should directly quote sources found during research.