He grinned at Oliver to try and make him feel better. "Good to know that I'm not such a wimp," he replied before he took a deep breath. He pushed himself up to his feet. "I'm okay now, I promise and really the fact that I threw up now is a good thing. I won't do it in mid flight. I have nothing left to throw up," he replied, looking at the positives.
He wasn't exactly about the whole flying thing but...he trusted Oliver not to do anything to hurt him.