coffee or lunch? (Istanbul)

Merhaba,
My kids and I finally joined my husband here in Istanbul. My kids are eager to meet some of their classmates. They will be starting the 6th and 8th grades at IICS in the fall. We are currently staying in Nişantaşı, but will be moving into our flat in Ulus/Beşiktaş next week. Please contact me if you and your kids would like to meet for lunch or coffee.