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:       Hello , may I speak with the property manager , please ?  
 Person2:Hello , this is the property manager . How may I help you ?  
 Person1:        During that horrible rainstorm last night , my roof began to leak .  
 Person2:What room was the leak in ?  
 Person1:        It was in our bedroom .  
 Person2:Are you on the top floor , or is there another apartment above you ?  
 Person1:        We are on the top floor .  
 Person2:I will be sending someone out as soon as I can get hold of the roofer . Will you be home this morning ?  
 Person1:        Yes , we will be in .  
 Person2:Fine . If you do end up going somewhere , we can just use our pass key . 

formal