If the emotion of happiness is present in the one of the dialogues of the conversation, then output Yes otherwise output No
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Question: Excuse me , miss . I don't think we need the MP4 any more . We would like to refund it . May I see your receipt ? Here you are . I am sorry , sir . You bought it 2 weeks ago , and you can only refund it in one week .

Answer: No

Question: Hello , could I speak to Allison , please ? I'm sorry ; he's out at the moment . When do you expect him back ? I think he'll be back in about an hour at least . Well , may I leave a message ? Yes , of course . Would you please ask him to call Chris when he gets back ? Ok . Does he know your number ? I'm afraid he doesn't . My mobile is 139- 2477 - 4026 . 13924774026 . All right . Thanks for calling . Oh , hang on , someone's at the door that may be him , please hold on .

Answer: Yes

Question: How do you put this seat back ? I know there is a lever somewhere . What are you doing ? I'm getting dressed , what does it look like ? It looks like you are about to get dressed . Did you forget we are in a car on the road ? I'm good at this . Nobody will see anything . Are you kidding ? You're going to cause an accident just from people gawking ! All right , pull over at that service station and I'll dress in the ladies ' room . That will be my pleasure .

Answer:
Yes