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 Kevin , how was your year at college ? 
 Person2:It was great ! How was your year ? 
 Person1:        It was good . Do you have a girlfriend at school ? 
 Person2:Yes , I'm dating someone . Her name is Amanda . 

informal