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:       Are you ready , honey ?  
 Person2:Sorry , not yet ! can you help me to select the dress ? i don , t what i should wear to fit thinner party .  
 Person1:        Just dress formal .  
 Person2:How about transom ?  
 Person1:        It is too loud , we ’ ll handle some official business first before the dinner .  
 Person2:Oh , i nearly forget it .  
 Person1:        You can put on your white shoes , it fits every occasion . 

formal