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:       I am so bored all day .  
 Person2:Why ?  
 Person1:        Jack borrowed a large sum of money from me and didn ’ t pay me back .  
 Person2:Don ’ t make a mountain out of molehill . I am sure he will do that on his payday . 

formal