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 , Paul !  
 Person2:Hi , good morning , you are so early today .  
 Person1:        Yes , traffic wasn't much today , so I made it to the office earlier .  
 Person2:I see . How long does it take you to reach the office every day ?  
 Person1:        Well , about an hour or so .  
 Person2:Wow , that ’ s quite a long journey . Do you drive a car ?  
 Person1:        No . I take public transportation . It's safer .  
 Person2:You are right ! But I get up a little late . That gives me no other option but to travel by motorcycle .  
 Person1:        Well , both have advantages and disadvantages . 

formal