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.
Q: May I please speak to Tom ?  Tom has gone to lunch .  I'll just try him again .  Do you want me to have him give you a call ?  No , but what time do you expect him back ?  He should be back in about forty minutes . 
A: 
Yes