"Well enough, thankee-sai." Cuthbert nods to her as he takes a seat.

"As to who and what you are, lady-sai, I confess I myself am still curious about that."

He actually doesn't know very much about what an Aes Sedai is. Roland told him Moiraine was trustworthy, when he'd arrived, and that had been enough for him to go on until a better time to ask questions arose.