Question: Who was the retired American astronaut who transferred from Expedition 44 to 45 on the International Space Station?
Sentence (from "Expedition 45"): Expedition 45 began with the arrival of Soyuz TMA-18M at the ISS on September 11, 2015, and concluded with the departure of Soyuz TMA-17M on December 11 2015.
Relevant evidence: No