TASK DEFINITION: If the emotion of happiness is present in the one of the dialogues of the conversation, then output Yes otherwise output No
PROBLEM: How much is it all together ? Let me see . The bell-bottom pants are $ 90 and the coat is $ 120 . It comes to $ 210 . Is it possible for you to reduce the price ? I am sorry . It's a one-price shop .

SOLUTION: No

PROBLEM: I want to buy a rain coat . Could you please show me one ? With pleasure . What color do you like ? I like yellow best . How much does it cost ? It costs 275 yuan , Miss . It's nice , but that's very steep for a rain coat . Could you give me a 20 percent discount ? Sorry , we don't give discounts . In that case , I don't think I'll buy one here .

SOLUTION: No

PROBLEM: Who is the next one ? It's Peter's turn . Give the mike to him . OK . Be quiet . He is singing . I thought he only liked to listen ! So did I . He has a really good voice ! Yes , he sings wonderfully .

SOLUTION:
Yes