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

[EX Q]: Hi , sir . Come and have a look here . We have all kinds of sweaters . I ' m looking for a sweater for my wife . Tomorrow is her birthday . And I know she needs a woolen sweater . How do you like this grey one ? It ' s pure wool , one hundred percent of Xinjiang wool . It feels good . Are there cowl-neck pullovers with the same color ? My wife prefers a turtleneck to a V-shaped collar . Yes , we do . What size do you want ? Size one . By the way , what if I bring home this sweater and my wife doesn ' t like it ? Well , you can always bring it back to us for a full refund . All right . Could I have it gift-wrapped , please ? Yes , just a moment , please .
[EX A]: Yes

[EX Q]: Would you like a piece of birthday cake ? No , thanks , I'll pass . It looks very tempting though . I thought strawberry cake with cream cheese frosting was your favorite ? It is . I'm on a diet and strawberry cream cheese cake is not on it . A diet ? What for ? You are in great shape . I went to the doctor the other day . My cholesterol is up . Oooo . This sounds serious . Not too serious . But he gave me a strict diet to help bring it down .
[EX A]: No

[EX Q]: Do you take in students ? I've been told you might have a vacant room . Yes . If you don't mind sharing room with someone else , there's one available . How much are you asking ? 800 Yuan a month . Could I have a look at it , please ? Sorry , but I'm on my way out now . Could you come back in an hour ?
[EX A]:
No