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: Look ! That man who is baking bread is so handsome .
Person2:Watch his bread , it seems to be delicious . He had a lot on the ball .
Person1: Oh , my god ! He ' s so perfect .
Output:
informal