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:       Hi Steve , it's nice to meet you . I hear that you're looking for an apartment , and I just rented a two-bedroom downtown . I'm looking for a compatible roommate . 
 Person2:Great , I'm looking for a place right in that area . Your apartment sounds ideal . 
 Person1:        Alright . So tell me , how would you describe yourself ? 
 Person2:I'm pretty social and outgoing , and I like making new friends . But I'm not a party animal , and I like to keep the apartment clean . 
 Person1:        I'm like that too . I like to invite friends over sometimes , but I don't want to have lots of crazy parties at the apartment . 

formal