Question: Which airline based in Georgia, USA owns United Express and introduced jets nonstop to Houston?
Context: Republic Airline Inc., operating as Republic Airline, is a regional airline subsidiary of Republic Airways Holdings that operates service as American Eagle, Delta Connection, and United Express using a fleet of Embraer 170 and Embraer 175 regional jets.  It is headquartered in Indianapolis, Indiana.  Its call sign "Brickyard" is derived from the nickname of the Indianapolis Motor Speedway. Shuttle America Corporation was an American regional airline based in Indianapolis, Indiana, USA.  It fed United Airlines flights at Chicago O'Hare International Airport (ORD) and Houston Intercontinental Airport (IAH) under the United Express brand, as well as Delta Air Lines flights at Atlanta (ATL), New York-LaGuardia (LGA), and New York-JFK under the Delta Connection brand.  Shuttle America also operated two of three Delta Shuttle East Coast routes, serving Washington, D.C. and Chicago from New York-LaGuardia. United Express Flight 6291 was a regularly scheduled United Express flight from Washington D.C. to Columbus, Ohio.  It was a service operated by Atlantic Coast Airlines on behalf of United Express. On April 9, 2017, O'Hare International Airport police violently and forcibly ejected passenger David Dao from United Express Flight 3411 after he refused to depart the airplane upon the demand of management.  Dao screamed as officers pulled him out of his seat, and his face hit an armrest during the struggle.  Officers then dragged him, apparently unconscious, by his arms on his back along the aircraft aisle past rows of onlooking passengers.  He was later seen with blood around his mouth.  Prior to the confrontation, managers offered travel vouchers to passengers to vacate their seats to make room for four airline employees who needed to travel to the destination, Louisville International Airport, but none of the fliers accepted.  Four passengers were then selected for involuntary removal from the flight.  Three other passengers complied, and Dao was selected to be fourth.  Republic Airline operated the scheduled passenger flight on behalf of United Express, a United Airlines regional branch. Air Wisconsin Airlines is a regional airline based at Appleton International Airport in the town of Greenville, Wisconsin, United States, near Appleton.  Air Wisconsin is the largest privately held regional airline in the United States.  It currently operates regional jet flights as American Eagle under contract to American Airlines via a code sharing agreement, serving cities in the U.S. and Canada with hubs at Boston Logan International Airport (BOS), Charlotte Douglas International Airport (CLT), Philadelphia International Airport (PHL) and Ronald Reagan Washington National Airport (DCA) .  Air Wisconsin previously operated United Express service on behalf of United Airlines followed by US Airways Express service on behalf of US Airways prior to becoming an American Eagle regional air carrier.  The company has announced it will once again partner with United Airlines as a United Express code sharing air carrier with primary hubs to be located at Chicago O'Hare International Airport (ORD) and Washington Dulles International Airport (IAD) beginning in September 2017 and will be "exclusively operating" as United Express by March 2018. ExpressJet Airlines, Inc. is an American airline based in College Park, Georgia, USA.  It is a wholly owned subsidiary of SkyWest, Inc., parent company of the air carrier SkyWest Airlines.  Before the acquisition from SkyWest it was an independent airline, and previously, a subsidiary of Continental Airlines.  ExpressJet Airlines, Inc., originally Continental Express, Inc., was a Delaware corporation. Del Rio International Airport (IATA: DRT, ICAO: KDRT, FAA LID: DRT) is two miles northwest of Del Rio, in Val Verde County, Texas.  It is used for general aviation, and being near Laughlin Air Force Base it is often used by USAF students.  On June 7, 2012 United Express operated by ExpressJet introduced jets nonstop to Houston, previously flown with turboprops.  United Express ended service to Del Rio in April 2013. But currently has non-stop service to Dallas/Fort Worth Airport with Texas Sky Airlines. Atlantic Southeast Airlines (ASA) was an American airline based in the A-Tech Center in College Park, Georgia, flying to 144 destinations as a Delta Connection carrier and, as of February 2010, commenced service as a United Express carrier.  It was a wholly owned subsidiary of SkyWest, Inc. ASA operated nearly 900 flights each day.  Its main hub was at Hartsfield-Jackson Atlanta International Airport (ATL).  ASA changed its name to ExpressJet in 2011. North Pacific Airlines was a small regional airline formed in 1987, flying for United Airlines under the United Express brand name from the Seattle–Tacoma International Airport to three Eastern Washington destinations and Portland, Oregon.  By 1991 the airline which was owned by WestAir Holdings had been merged with WestAir Commuter Airlines still under the United Express banner.  WestAir Commuter Airlines was another member of the WestAir Holdings corporation. Jackson Hole Airport (IATA: JAC, ICAO: KJAC, FAA LID: JAC) is a United States public airport located seven miles (11 km) north of Jackson, in Teton County, Wyoming.  In 2015, it was the busiest airport in Wyoming by passenger traffic with 313,151 passengers.  During peak seasons, Jackson Hole has nonstop airline service from 13 destinations throughout the United States including New York–JFK, Chicago–O'Hare, and Los Angeles International Airport.  During shoulder seasons, airline service is limited to the nearby hubs of Salt Lake City and Denver.  The airport is served year-round by Delta Connection and United Express and seasonally by Delta (mainline), United (mainline), Frontier Airlines and American.
Answer: ExpressJet