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:       I ’ m going to the beauty parlor . Do you want to come too ?  
 Person2:Sure . Let ’ s go . What are you going to have done ?  
 Person1:        I want to have a foot massage and a haircut .  
 Person2:A foot massage sounds like a great idea . They are very relaxing . I ’ d also like to have mudpack on my face . It ’ s supposed to help with your complexion .  
 Person1:        Good idea . We should also get pedicures and manicures .  
 Person2:This could become a very expensive trip to the beauty parlor !  
 Person1:        I think it ’ s a good idea to pamper yourself occasionally . Don ’ t you agree ?  
 Person2:Oh , I agree . We both work hard and a little beauty treatment can relieve stress .  
 Person1:        Maybe we should try a thai massage too .  
 Person2:What ’ s special about a thai massage ?  
 Person1:        That ’ s when the masseuse walks on your back and massages you with her feet .  
 Person2:Sounds painful ! 

formal