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'.

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