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: She's still floating away. It's a very slow departure. She looks like she's lost. She's pointing.

SOLUTION: Maybelline, open a window. We'll shoo her out with a broom.

PROBLEM: Can I get the first bus to the border?

SOLUTION: I've got a bus that's headed up to upstate New York.

PROBLEM: Excuse me, sonny.

SOLUTION:
Yes, how may I help at the grocery store?