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:       Good morning , I am Monica . Are you Mr . White , the manager of finance department ? I am the newcomer and also working in the finance department .  
 Person2:Yes , that is me . Nice to meet you , Monica . Welcome on board !  
 Person1:        Thank you . I am very happy to have my own office now . I ’ Ve never had one before . It is very nice .  
 Person2:Well , we have nicer things than that in this company . You will find out soon .  
 Person1:        Really ? What could that be ?  
 Person2:Well , I bet you will love them too . If you need help , just ask me any time . I am in the next door . You can also reach me through the extension 508 .  
 Person1:        That is very kind of you . Thank you very much . 

informal