Task: Question Answering
Input (English): Passage: While travelling through Utah, Jack Carter picks up a hitchhiker, but kicks him out after a few minutes due to the man hitting on him. Hours later, Jack stops in a secluded area, and begins digging a grave for the woman he had bound and gagged in the back of his pickup truck.
Four women (Melinda, Patty, Kristina, and Denise) from Colorado Springs are driving through the area on their way to a nurse's conference in Las Vegas. Spotting Jack hitchhiking, the quartet pick him up, and soon after experience car trouble, forcing them to stop at a roadside motel. The manager tells the group that the nearest service station does not open until the morning, so they elect to stay. During the night, Jack shows interest in Melinda, and has rough sex with Kristina, who has a fiancé.
In the morning, the mechanic arrives, and is shot to death by Jack after the two travel to Jack's abandoned truck. Jack returns to the motel, where he murders the manager and takes the women captive after drugging them. Jack gives a misogynistic speech, and implies he is doing this due to having been "betrayed" by his girlfriend or wife. While sexually assaulting Denise and Melinda, Jack is knocked out by the latter, who tries to escape with her friends. The vehicles will either not work, or are missing their keys, so the women decide to kill Jack, who awakens while being attacked, and fatally shoots Kristina. The others are recaptured, and while Jack is binding Melinda (who he has developed a fondness for, and regards as "special") a married couple arrives, looking for a room. 
Question: Who picks up a hitchhiker on their way to Las Vegas?
Output (English): Melinda, Patty, Kristina, and Denise.