Definition: If the emotion of happiness is present in the one of the dialogues of the conversation, then output Yes otherwise output No
Input: Are you going to buy a bicycle ? I ' m thinking about it . How much is it ? 350 . Oh , dear . It ' s too expensive . Can you give me a better price ? Your discount is already included . Normally we charge 400 , but now we can give you a special price . This is our sale period . It ' s still too much . Can ' t you make it any cheaper than that ? Sorry , but this is the best price . You can ' t get it any cheaper than here . I see . Can I pay by traveler ' s checks ? I'm afraid you can ' t . You ' re welcome to pay in cash .
Output:
No