The Dalliance was a YT-1210 light freighter of Corellian make, but with alterations. The New Jedi Order possessed it, keeping it at the Jedi Praxeum situated on Yavin 4.
In 25 ABY, Corran Horn and Ganner Rhysode piloted the Dalliance on a mission that took them to Bimmiel. The pair of Jedi were investigating the vanishing of a group of xenoarchaeologists affiliated with the University of Agamar.
As fate would have it, a Yuuzhan Vong presence was discovered on the planet. During an attempted rescue operation of students held captive by the Yuuzhan Vong, Corran Horn was taken prisoner. Ganner, at the helm of the Dalliance, successfully rescued Corran, extracted the archaeologists from Bimmiel, and also transported the remains of a Yuuzhan Vong advance scout named Mongei Shai that they discovered.