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.

I think I going to need some iced water too . Is there an extra charge for that ?  Yes , we charge 50 cents for water .  That's fine . Could you give me some more napkins , too ?  Sure . Do you need anything else ?  Yes , I would also like some sweet and sour sauce and pepper .  I'll put all that into the bag for you .  Do I owe you anything for the sauce , pepper and napkins ?  No , there is no charge for those . 
Yes