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:       What are you going to do for one year abroad , Tom ?  
 Person2:Study , study , study . I want to learn a lot .  
 Person1:        You are going to take courses ?  
 Person2:Yes . I am going to take some university courses there .  
 Person1:        Sounds hard .  
 Person2:Yes , but I think it's probably for the best .  
 Person1:        Won ’ t you get lonely ?  
 Person2:Hey , I am a pretty cool guy . I will make friends , and I'll have a lot of extracurricular activities too . You know , like fencing , or theater or something . 

formal