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:       Hey , Jeff , where's your stereo ? 
 Person2:I needed some money , so I hocked it last week . 
 Person1:        You must have been really hurting for cash to have done that . 
 Person2:I had just enough money to make ends meet until payday . Then last Wednesday I received a phone bill to the tune of $ 195.00 . I hit the ceiling when I saw that . 
 Person1:        It sounds like you weren't expecting that . 
 Person2:I'd forgotten that my brother had used my phone earlier this month to call his girlfriend . He forgot to mention that she happened to be in New York at the time 3000 miles away . 
 Person1:        Well , if you need some money to tide you over until payday , I can loan you some . 
 Person2:Thanks , but tomorrow's payday I can make until then . Thanks any-way . 

informal