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:       My Buddha ! ! It's beautiful ! But I thought you were afraid ?  
 Person2:Actually , I was watching your auction all along . I saw you drop out at $ 250 .  
 Person1:        You sneak !  
 Person2:I watched Buddha buyer go up to $ 315 . I waited until the very last minute and then I jumped in at $ 325 ! I sniped him !  
 Person1:        But that's a lot of money ! Honey ! 

informal