Who said "I believe in second chances, for I have been given one."?

This quote is attributed to Missandei.

I believe in second chances, for I have been given one. - Missandei

"I believe in second chances, for I have been given one."

Missandei

"I am Missandei of Naath, interpreter and advisor to the Dragon Queen."

"Daenerys Targaryen chose to free us, not because she needed us, but because it was right."

"Knowledge is power, but wisdom is knowing how to use it."

"I have served many masters, but I chose to serve the Mother of Dragons."