She looks at the ground, "My position in the Convent has lead me on long stretches without companions. My visage is not the most well received of forms, either. Knowing this, I give you a chance to reconsider your request. I am not the most easy of companions you could wish for. I do, however, possess a set of skills applicable to your mission. Your terms are not counter to my obligations or observances, nor my duty. Assuming you take no trouble with me, I take no trouble in our temporary alliance." 

She looks him in the eyes, and for the briefest of moments the illusion drops around her, super-positioning both images together. As things stand, she seems to be accepting the request.