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:       Can you be serious for a moment , we've been dating for 6 months now , I really like you . I'd like to take a relationship to the next level . 
 Person2:So what are you trying to say to me ? 
 Person1:        It feels like you are not dedicate to our relationship . It seems like you treat it as a just casual dating . 
 Person2:How should I say it ? 
 Person1:        I don't want to be like this . I think we should get step further . 
 Person2:It has only been 6 months , our relationship hasn't had a chance to maturate . We are still have some hurdle we have to jump over . 
 Person1:        Like what ? 
 Person2:Last week I saw Brain kissing you on the cheek . 
 Person1:        It was only the cheek . 
 Person2:That is ok , then ? Starts on the cheek ? pretty soon you french kiss in the back on his car . 
 Person1:        Oh , that is ridiculous . 
 Person2:So is it ok if I kiss other women on the cheek ? 
 Person1:        Definitely not . 
 Person2:You see , we still have hurdle . 

formal