My apologies for being ambiguous previously. With the Travel Package, you have to use the location tab to define your target. On the left side of the location tab is the "Near Reference" section. In the first drop-down, choose the cell that contains your persistent chair. In the second-drop down, choose the chair. Or, use the "Select Reference in Render Window" button to double-click on the chair, if you have it in view.
If your chair isn't showing up in the list, or you are unable to select it in the render window from the button (the cursor never turns white when you hover it over the chair), it is because you didn't make the chair persistent.
http://cs.elderscrolls.com/constwiki/index.php/Travel_Package is the CS Wiki entry for travel packages. You can still use a http://cs.elderscrolls.com/constwiki/index.php/Find_Package if you prefer, but in this case you'll have to choose the chair in the "Specific Reference" section of the target tab - either way will get the job done the same.
Good luck!