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:       That's OK , Ben , just let it go . I thought you were just a little too much into it . 
 Person2:I wasn't kidding before , OK , I'm fine now . 
 Person1:        Honey , have you ever heard that there are a lot of stray cats now . 
 Person2:Yes . 
 Person1:        Now they are collected by some volunteers , and people can adopt them or make a donation for the shelters . 
 Person2:What are you saying ? You are acting weird today . 
 Person1:        I want to adopt a cat , and it can be Barbie's boyfriend too . 
 Person2:Haha , very funny , but it doesn't make any sense to me . 
 Person1:        That's all right . At least I got myself left . 
 Person2:Seriously , if we will adopt any animals , we'd gotta to talk to Daniel . 
 Person1:        I hope that he would grant me with that . 
 Person2:Hope so . 

informal