Definition: You are given a conversation between two people. 'Person1:' and 'Person2:' are used to separate their respective dialogues. You are required to assign a label 'formal' if there is an absence of emotion and a presence of questions anywhere within the conversation. If such pattern is not found assign the label 'informal'.
Input:  Person1:       Michelle , Can you help me clean things up before we go ?  
 Person2:Sure . Where should I put this cup ?  
 Person1:        Which cup ?  
 Person2:The red one .  
 Person1:        Put it on the table .  
 Person2:How about this fruit ?  
 Person1:        Oh , that goes in the refrigerator .  
 Person2:And those pencils ? What should I do with them ?  
 Person1:        Bring those upstairs and put them in the bedroom .  
 Person2:How about this pen ?  
 Person1:        Give it to me . I need to use it .  
 Person2:What do you want me to do with that paper over there ?  
 Person1:        You can throw that away . I don't need it anymore .  
 Person2:The trash is full .  
 Person1:        Alright , then please put it in a bag and take it outside .  
 Person2:OK . Now what ?  
 Person1:        I think we're finished . Can you please turn off the lights and shut the door ?  
 Person2:Sure . 

formal