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:       have you bought a present for jim ’ s birthday yet ? 
 Person2:no , I haven ’ t . I can ’ t think of anything to get him . 
 Person1:        I ’ m having the same problem . I want to get something really special . Jim always seem to know exactly what to get people as gifts . 
 Person2:I know . He bought me that beautiful sweater for my birthday . It was exactly what I wanted . And it fit me perfectly ! 
 Person1:        he bought me an iron . 
 Person2:that doesn ’ t sound like a great present . 
 Person1:        maybe not , but my iron was getting old . In fact , it stopped working the week after jim bought me the new one . It ’ s as if he knew that my old iron would soon stop working ! 
 Person2:let ’ s think . He loves football , doesn ’ t he ? I saw signed photographs of famous footballers in a shop near hear . Let ’ s go and have a look . You know which team he supports , don ’ t you ? 
 Person1:        yes , I do . Let ’ s go . We should be able to find something suitable . We should get him something old ... something historic . 
 Person2:it ’ ll be an expensive present , but we can share the cost . 
 Person1:        I ’ ll be happy to get him something special , even if it coasts a little extra . 
 Person2:yes . He always get us special gift . We should repay his kindness . 

informal