This study examines positive low-and high-grade assessments in service encounters between customers and salespersons conducted in Swedish and recorded in Sweden and Finland. The assessments occur in a regular sequential pattern as third-turn moves that complete request-delivery sequences, longer coherent requesting sections, or request sequences in a pre-closing context. The positive valence of the assessments coheres with the satisfactory outcome of task completion, but their function is primarily pragmatic, used for segmenting the flow of task-oriented institutional interaction. The assessments stand as lexical TCUs, and their delivery is characterized by downgraded prosody and the speaker's embodied shift away from the other. The analysis reveals distributional differences in the interactional practice: Customers produce task-completing assessments more often than the salespersons, and high-grade assessments are more frequent in the data from Sweden than from Finland. The data are in Sweden Swedish and Finland Swedish with English translations. Assessing has been found to be a social activity that displays characteristic patterns of sequential organization and is connected to the more overarching social principle of preference organization (e.g., Goodwin & Goodwin, 1987; Pomerantz, 1984), but assessing is also linked to factors like epistemic stance and agency (see, e.g., Heritage & Raymond, 2005; Thompson, Fox, & Couper-Kuhlen, 2015, p. 144). The study we report on here contributes to the body of work on assessing in social interaction by taking a specific type of institutional activity to the foreground: service encounters in a commercial setting (see, e.g., Felix-Brasdefer, 2015; Fox, 2015). In such interactions, both customers and salespersons engage in the exchange of information, delivery of goods, and other services. The customer wants to buy a product or receive information related to the product, and the staff requests relevant documents and payment at certain stages of the commercial exchange. The participants also position themselves relative to one another in displaying shared understanding, agreement, and orientation to their differential rights and obligations in the asymmetrical institutional context. We have specifically investigated the social organization of box office encounters in Swedish and observe a recurrent sequential pattern around different forms of task completions in these activities. A typical sequential trajectory hereby involves (a) a (general) requesting action, (b) delivery of the