If nothing was unclear or difficult, say so. Skip questions about steps you did not experience; use not applicable where appropriate.

Which interaction came to mind when you read the question?
Approximately when did it happen, if you remember?
How did you decide it belonged in the stated period?
What would you do if you could not recall an interaction in that period?

Author notes / illustrative keys where applicable:
1. Identify the selected episode without requesting private interaction contents.
2. Allow uncertainty instead of manufacturing an exact date.
3. Check whether people used the same time boundary as the question.
4. Test a skip or no-applicable-experience route.