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:       How many languages can you speak ? 
 Person2:I can speak French and German . 
 Person1:        How well can you speak them ? 
 Person2:I can speak German quite well , but I can't speak French very well . 
 Person1:        Can you help me to translate these sentences into German now ? 
 Person2:No , but I'll be able to tomorrow . 

formal