Teacher:If the emotion of happiness is present in the one of the dialogues of the conversation, then output Yes otherwise output No
Teacher: Now, understand the problem? Solve this instance: Excuse me , sir . Is there anything I can do for you ? Yes . I bought the can two days ago , but today I found that is beyond the guarantee period . Let me see . I am sorry , sir . We will change another one for you . Please wait a moment .
Student:
No