With no explanation, label text_A→text_B with either "DON'T KNOW", "NO" or "YES".
text_A: After ending his partnership with Martin in 1956, Lewis and his wife Patty took a vacation in Las Vegas to consider the direction of his career. He felt his life was in a crisis state: "I was able to keep up my usual affairs, putting one foot in front of the other, but otherwise, I had no confidence and was unable to try anything new. I was completely unnerved to be alone". While there, he received an urgent request from his friend Sid Luft, who was Judy Garland's husband and manager, saying that she couldn't perform that night in Las Vegas because of strep throat, and asking Lewis to fill in.
text_B: When Lewis received the call from Sid Luft, does the mental state he described in his quote suggest that he would be willing and able to start performing in Las Vegas?
NO.