Arrow (Netflix series)?

When do Sara and Nyssa get to know each other, which season and when do the characters of the series meet?

Well, Sara is not long because she goes to legends of tomorro and nyssa has only occasionally outlets in the series. They are only briefly together and then the two go different ways

Thanks for the spoiler actually I just wanted to know when they appear in the series for the first time and get to know each other.

2x13 sees Nyssa the first time