Flying with airlines is the best way to travel to the desired destination. However, sometimes it becomes worse if carry-on items are lost. But you do not have to worry if you book your flight on Southwest Airlines, because the airline has a dedicated team to resolve this issue. Further, if you left something on Southwest Airlines, then you can directly contact the Southwest Lost And Found team, or you can also file a lost claim by filling out the form. For more details, contact the customer service of the airline or check out the blog linked above.