Israeli soda type drink
What you're describing sounds like jallab. From Will Travel For Food:


  Jallab is a very popular drink in the Middle East. It’s made by diluting the syrup made of grape molasses, dates and rose water with water and serving it in a tall glass with crushed ice. It’s always topped with nuts, most of the time pine nuts and golden raisins, because a jallab without nuts is not really a jallab.


There is also a recipe on the linked page.

Also, from Wikipedia:


  Jallab (Arabic: جلاب / ALA-LC: jallāb) is a type of fruit syrup popular in the Middle East made from carob, dates, grape molasses and rose water.[1] Jallab is very popular in Jordan, Syria, Palestine and Lebanon. It is made mainly of grape molasses, grenadine syrup, and rose water, then smoked with Arabic incense. It is usually sold with crushed ice and floating pine nuts and raisins.


Jallab, the syrup used to make this drink seems to be quite easy to find on the internet. It is also sold in Middle Eastern grocery markets.