If the emotion of happiness is present in the one of the dialogues of the conversation, then output Yes otherwise output No

[Q]: 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 . 
[A]: No


[Q]: What's the cost of the trousers ?  $ 90 .  Is there a price reduction ?  Sorry , sir . The prices here are all fixed . 
[A]: No


[Q]: Excuse me . I bought this just now and here's a receipt . I'm afraid I was short-changed . Could you look into it ?  Oh , really ? Just a moment ... You paid with a ten-dollar note and I gave you ... Oh , sorry , here's a five left . I'm terribly sorry . 
[A]:
No


