In the given conversation, various characters have made plans to meet at Caroline's Café. Here's a summary of the meetings:

1. Samantha and Mei will discuss their collaboration on Monday at 1 PM at Caroline's Café.

2. Caroline and Peter will meet next Monday at 3 PM at Caroline's Café, where Peter will try Caroline's workout routine.

3. Diego and Caroline will discuss their startup idea after Caroline closes her shop on an unspecified day, also at Caroline's Café.

4. Peter, Noor, Leo, and Samantha will meet at Caroline's Café the following day (the day after the previous three meetings) at 3 PM.

5. Peter and Mei will discuss their AI projects on the following Tuesday (the day after the fourth meeting) at 3 PM at Caroline's Café.

6. Andy and Noor will meet at Caroline's Café on the following Monday (the day after the fifth meeting) at 1 PM to discuss the AI music project.