If you're away on time off (e.g.: Vacation or Parental Leave), you probably don't want Nikabot to be asking you what you did every day.
Nikabot is clever, and when you have scheduled time off for your full workday duration, she won't bother you that day.
You can schedule time off through your chat with Nikabot, or your Report Center: How do I Schedule Time Off?
Nikabot admins can set the workday duration on the Team Settings page: How do I change my team's work hours policy?