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:       If you like you can try it on.The fitting room is in the corner .  
 Person2:OK . What do you think of it ?  
 Person1:        I think it fits you . It flatters your figure .  
 Person2:I think so . But can I try another one ? I don't like the color . 

formal