You will be given a definition of a task first, then some input of the task.
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'.

Person1: What was the movie you saw last night ?
Person2:It was a foreign film called ' Gone with the wind ' .
Person1: Really ? I've seen that movie , too .
Person2:How did you like the movie ?
Person1: I thought it was pretty good .
Person2:I can't say I agree .
Person1: You're kidding . The storyline and acting were outstanding .
Person2:I guess I expected too much from the movie , so I was a bit disappointed .
Person1: It might be .
Output:
informal