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:       When in Rome , do as the Romans do , they say .  
 Person2:What do you mean ?  
 Person1:        Roman is living in Rome , of course . And go to work by car , or bus , or on foot .  
 Person2:I think the Romans do what everyone else does .  
 Person1:        Certainly .  
 Person2:And Roman really loves life . He knows how to enjoy himself .  
 Person1:        Not always . But they like good meal .  
 Person2:Really ?  
 Person1:        How can I go there to have a taste ?  
 Person2:By air of course . 

informal