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With demand for travel to the San Francisco Bay Area heavy during the Dot-com bubble, Shuttle was profitable and United regained 80% of the market share that they had lost to Southwest Airlines in the early 1990s. Rono Dutta's decision to return the Shuttle to a hub feeder airline meant the demise of the Shuttle. Cloud cover at SFO reduced arrival traffic by 50%. These frequent delays, exacerbated by Shuttle's high frequency schedule and less than adequate staffing, meant the eventual demise of the Shuttle. In 2000 two out of three flights between SFO and LAX were delayed or canceled.