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:       It ’ s time for me to go now .  
 Person2:Would you like me to go with you ?  
 Person1:        I ’ d rather you stayed in the office and did these things .  
 Person2:Do you want to type that letter ?  
 Person1:        I ’ d rather you typed it .  
 Person2:Do you want to tell her ?  
 Person1:        I ’ d rather you told her . 

formal