Found that today and love it:
“I am at your service, my lady,” I said, standing and releasing her hand. For the first time in my life I understood the true purpose of this sort of formal greeting. It gives you a script to follow when you have absolutely no idea what to say.”
http://www.goodreads.com/quotes/823060-i-am-at-your-service-my-lady-i-said-standing [22.12.2016].
