TASK DEFINITION: Given the sentence, generate "yes, and" response. "Yes, and" is a rule-of-thumb in improvisational comedy that suggests that a participant in a dialogue should accept what another participant has stated ("Yes") and then expand on that line of thought or context ("and..."). 1 In short, a "Yes, and" is a dialogue exchange in which a speaker responds by adding new information on top of the information/setting that was constructed by another speaker. Note that a "Yes, and" does not require someone explicitly saying 'yes, and...' as part of a dialogue exchange, although it could be the case if it agrees with the description above. There are many ways in which a response could implicitly/explicitly agree to the prompt without specifically saying 'yes, and...'. 
PROBLEM: You're Reginald Grocery. In the flesh as I live and barely breathe.

SOLUTION: Yes, I was just coming by the store today to check on the employees. One of our stock boys, Vlad, he's celebrating his 30th year here at Grocery Store.

PROBLEM: Stop making fun of me, my name is exotic.

SOLUTION: Your name ends in a t so you're probably from that backwards country called Country.

PROBLEM: I forgot to mention that I'm due to have a stroke any minute.

SOLUTION:
Oh, you scheduled one? That's the way to do it.