TASK 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'.
PROBLEM: Person1: What is the movie you saw last night ?
Person2:It is a new film , ' Transformer ' .
Person1: How do you like it ?
Person2:I expected too high from that movie , but I was a bit disappointed about it .
Person1: But I heard the box office rose up to 15 million in the first week .
Person2:Box office can't explain everything . I do not think it is cheerful or well-made . The plot is old and the female character is not pretty .
Person1: My sister has given me two tickets for tonight . It is called ' The life of Rose ' , a French movie .
Person2:What's it about ?
Person1: It tells the lifetime of a lady singer from a beggar in the street to a famous singer in the world . It is a kind of tragedy .
Person2:I prefer the tragedy . It is moving and makes me ponder about my life .
Person1: Let's go . The time is coming .
Person2:We can buy the popcorn before entering the cinema .

SOLUTION: informal

PROBLEM: Person1: Ann invited us to dinner this saturday afternoon .
Person2:What should we take ?
Person1: How about a china vase ?
Person2:Good idea !

SOLUTION: informal

PROBLEM: Person1: What places does the tour include ?
Person2:You will visit the Hyde Park , Poet's Corner , Tower of London , Fleet Street and Tower Bridge .
Person1: So many places I have been looking forward to . We will take part in the group .
Person2:I think you will enjoy your journey .

SOLUTION:
informal