You will be given a definition of a task first, then some input of the task.
If the emotion of happiness is present in the one of the dialogues of the conversation, then output Yes otherwise output No

can I see these silk ties ? No problem . I ' ll take this one . Good . Anything else ? The tie pins ? The cuff links ? No , thank you . I want to have a look at that scarf . Ok . We have several kinds of scarves here . Let me get them for you . Just wait a minute . Oh . I like this one . I have been looking for this color and design . Please wrap it for me , and I ' ll take it .
Output:
Yes