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:       I have talked a lot about your restaurant business and your friends with my friends . One of my friends seems to be on good terms with Sue .  
 Person2:Is he beating Mark ’ s time ?  
 Person1:        She is indeed well . But she would not give anyone a tumble , you bet . 

formal