Given the task definition and input, reply with output. 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:       Hello . I need to disconnect my phone , please .  
 Person2:All right . Where do you live , sir ?  
 Person1:        At 345 Lincoln Avenue . Oklahoma City .  
 Person2:Very well . Why do you want to disconnect your phone , sir ?  
 Person1:        I ’ m moving to a new home .  
 Person2:O . K . May I have your name please ?  
 Person1:        John Smith .  
 Person2:Thank you . Mr . Smith . What ’ s your telephone number ?  
 Person1:        555-7658  
 Person2:Thank you . Where should I send your final phone bill ?  
 Person1:        623 West Side Drive . New York , New York .  
 Person2:Thank you , Mr . Smith . Your phone will be disconnected after this phone call . Have a nice day .  
 Person1:        Thank you , you too . 

informal