Determine whether there has been any questions asked by the speaker in the dialogue or not. If there has been a question in the dialogue then the output Yes otherwise output No.
One example: Are things still going badly with your houseguest ?  Getting worse . Now he ’ s eating me out of house and home . I ’ Ve tried talking to him but it all goes in one ear and out the other . He makes himself at home , which is fine . But what really gets me is that yesterday he walked into the living room in the raw and I had company over ! That was the last straw .  Leo , I really think you ’ re beating around the bush with this guy . I know he used to be your best friend in college , but I really think it ’ s time to lay down the law .  You ’ re right . Everything is probably going to come to a head tonight . I ’ ll keep you informed . 
Solution is here: Yes
Explanation: In this dialogue, there has been question present in the conversation so its ouput is Yes. So this is a positive example.

Now, solve this: Hello , Can I speak to Tom , please ?  I'm afraid he is not in at the moment .  May I ask what time he will come back ?  I think he will come back at 3 p . m . Do you want to call later ? Or would you like to leave a message for him ?  I'd like to leave a message . Please ask him to call me back as soon as he returns . I'm A and he has my number .  OK . I will do that .  Thank you very much . Bye .  You're welcome . Bye . 
Solution:
No