To read more about accommodation, you could start with the paper by Lewis on “scorekeeping” which is on the syllabus. Additional readings:

• Kai von Fintel: 2000. “What is Presupposition Accommodation”, ms. MIT.
• Mandy Simons: 2003. “Presupposition and Accommodation: Understanding the Stalnakerian Picture”. Philosophical Studies, 112(3):251–278.
• Robert Stalnaker: 2002. “Common Ground”. Linguistics and Philosophy 25(5-6), December 2002, 701-721.