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:       In the discus throw , you scored 30 meters at the final throw . How did you make it ? 
 Person2:Well , I've been practising for 5 weeks . 
 Person1:        Is this your best score ? 
 Person2:No , once I did 32 . 

formal