Studies in intercultural communication have, in general, focused on misunderstandings and failure in this type of interaction. In this work, it is intended to investigate the participants’ efforts to be successful in a service encounter that has English as a lingua franca. The focus of this study is the use of overlaps, dealt under the theory of the Conversation Analysis. Although the overlaps can function as a mechanism of turn taking, usually followed by the taking of the conversational floor, the use of overlaps, in the data analyzed, has shown that the participants are oriented to an understanding, as it can be seen when they happen in a non-relevant transitional place. Therefore, as the results indicate, the overlaps, in the majority of the cases, function to signal solidarity, benefiting the interaction and, consequently, the solution of the problems which orient the action of the client and the attendant.