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: Consider Input: Person1: Could you tell me the right time , please ?
Person2:Well , my watch says five past two , but it's no use relying on it , because it has been gaining and losing these last few days .
Person1: You'll have to get it fixed .
Person2:Yes , I will .

Output: formal

Input: Consider Input: Person1: Did you hear about car accident on Spring Road yesterday ?
Person2:Yes , I did . I heard that they took both drivers to hospital . One needed surgery .
Person1: Yes . I heard he had a few broken bones too , but that the doctors have set the fractures without any problems .
Person2:The second driver was luckier . He had a concussion and needed some stitches for his head wound .
Person1: Yes . He was released from hospital yesterday evening . The other man could be there for weeks .
Person2:I understand that he ' s connected to a heart monitor and breathing apparatus . His condition can ' t be very good .
Person1: The hospital announced this morning that his condition is poor but stable . What does that mean ?
Person2:It means he ' s really badly injured , but he will almost certainly survive .
Person1: His family will be pleased to hear that . They must have been so worried .

Output: formal

Input: Consider Input: Person1: There is something wrong with my girlfriend .
Person2:What's the trouble ?
Person1: The department manager is all over her . He says he loves her .
Person2:What about your friend ? Did she fall for him ?
Person1: Of course not ! She thinks he's an apple-head . She doesn't like an apple-headed man , you know .
Person2:Now you don't have the butterflies in your stomach , do you ?
Output: formal