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:       Where will it be ?  
 Person2:Take me to the railroad station . Can you put my baggage in the trunk ?  
 Person1:        OK . But let me park my car in a better position . All right , miss . Where are the bags ?  
 Person2:Over there .  
 Person1:        That's a lot . What did you bring with you ?  
 Person2:They're just gifts I bought . Don't worry . They are not heavy . 

formal