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:       Mom ! How can I help with the washing up ?  
 Person2:You peel the onions and wash them , then chop them .  
 Person1:        OK ! Then what can I do after I finish it ?  
 Person2:Let me see . Wash the cabbage over there .  
 Person1:        OK , got it .  
 Person2:What is your father doing now ?  
 Person1:        Reading newspaper on the couch .  
 Person2:How about Daniel ?  
 Person1:        Staying with Ultraman , of course . You know he likes it very much .  
 Person2:Be careful of the peeler . Don't cut your fingers .  
 Person1:        I will .  
 Person2:OK , we've finished . Can you get your father and brother ?  
 Person1:        OK ! 

informal