This report proposes that people often plan their speech acts to affect their listeners' beliefs, goals, and emotional states and that such language use can be modeled by viewing speech acts as operators in a planning system, allowing both physical and speech acts to be integrated into plans. Methodological issues of how speech acts should be defined in a plan-based theory are illustrated by defining operators for requesting and informing. Plans containing those operators are presented and comparisons are drawn from J.R. Searle's formulation. The operators are shown to be inadequate, but by refining the operator definitions and by identifying some of the side effects of requesting, compositional adequacy can be achieved. (Author/AEA)