question:  Why didn't Julia pick up her suitcase with the other passengers?
context: I had finished reading the Chronicle , folded and put it beside me, turned and looked out the window, expecting to see the San Joaquin Valley but finding only a sea of clouds instead. So I returned my attention to the inside of the plane, to the overstuffed gray-haired woman asleep beside me, to the backs of heads in seats before me, across the aisle to other heads, and down to the blonde. Inventory completed, I went back to looking at the clouds, knowing I should be thinking about the printing order I was going to Los Angeles for, and not wanting to. I didn't want her to think I had taken it while she was out of the room, so I probed the contents of her purse, which she always kept in the upper right drawer of her desk. I had set my alarm for five-thirty because I had to catch the seven o'clock plane at San Francisco International Airport. This being earlier than I usually get up, it seems all I did during the night was feel my way past the escapement and balance wheel to see where the notch for the alarm was. I went through slips and slippers, lingerie and laundry, a jig saw puzzle and a ukulele. One went to a battery and the other to hard round cylinders taped together. It was forty minutes to Burbank and Lockheed Air Terminal. No, none of them would know it was there. We'd be leaving the valley for the mountain range north of Los Angeles soon, if we hadn't left it already. The stewardess stood in the aisle, smiling, extending a tray to me, a brown plastic tray bearing a small paper cup of tomato juice, a cup of coffee, a cellophane-wrapped doughnut, paper spoon, sugar and dehydrated cream envelopes, and a napkin. My seatmate had accepted hers and was tearing at the cellophane.
output:  Julia went to call her sister before collecting her suitcase.
options:  Julia was detained by customs before she could get to the baggage claim.  Julia went to call her sister before collecting her suitcase.  Julia was told that her suitcase didn't make the flight when they were mid-air.  Julia didn't want to be near the suitcase when the bomb went off.