This used to be available on StarWars.com. It's gone, but there is a published version
The story is set during the first season of The Clone Wars
(TV show), before the episode "Destroy Malevolence
" (1.04). See below for screencaps of the relevant two pages, on which Chancellor Palpatine meets with Senator Amidala in his office and sends her on a supposed diplomatic mission.
Of course, the "opportunity" is nothing more than a Separatist trap. He knows that the military guy is a spy for Dooku.
Note how he plays on the key traits of her character - her optimism, her hope of ending the war and her confidence that she can be the one to do it (like she did on Naboo). She wants it to be true so much that she rushes in, not suspecting a trap, when anyone else would be skeptical.