Riza heard Tony answer her question about how his suit was taken. Then looking to her suit. "Jarvis, set its beacon and have it wait. If something goes wrong, use it to help." 
Her suit nodded once. "Certainly ma'am. Does this suit you sir?" Looking to Tony since he could override her commands.
Thor looked to his brother, with almost a disbelieving look. He turned to look at Loki. "Loki. Why not go with Riza. Stark and I will go and find them, waiting for any directions. We will be careful but you must promise me you will be careful in return." 
Riza nodded and headed off when the area was clear. She was careful though, using the training that she learned from SHIELD and the Avengers.