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:       Did you get the car you wanted ?  
 Person2:No . Someone had stolen a march on me and bought it .  
 Person1:        What about the car over there ?  
 Person2:It is marvelous , and the price is marvelous , as well . 

formal