Provide the theme summaries for the following conversation: 

Sandra:  Hey Mark, how's your grand project doing?
Mark: Do I sense some sarcasm my fellow worker?
Sandra: No, no sarcasm at all XD
Mark: Well, it's going pretty slow now when John got sick
Sandra: So when is he coming back?
Mark: Next week I think
Sandra: I've heard that our CFO was very much interested in the whole process :)
Mark: I bet he was, the project is brilliant XD

Summary: 
Mark's project is going slow now that John is sick. John is probably coming back next week. The CFO is supposed to be interested in the project.