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'.
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Question: Person1: I like the kid.He ' s so lovely .
Person2:How old is he ?
Person1: Twelve.He ' s very sensible for his age .

Answer: formal

Question: Person1: Hey , Philip ! You won ' t believe this !
Person2:What ? What ' s the good news ?
Person1: My son , Harvey just got into Harvard ! He starts next September .
Person2:That ' s wonderful ! You must be really proud of him !

Answer: informal

Question: Person1: Good morning !
Person2:Can I speak to Miss Cooper please ?
Person1: Would you hold on a second , please ? Miss Cooper's extension is engaged .
Person2:Engaged.Oh , dear ! Could you tell her it's a long-distance call ?
Person1: I'm sorry , sir . I can't interrupt her . I'm sure she won't be very long .
Person2:How long do you think she'll be ?
Person1: I really can't say how long she'll be .
Person2:Can I leave a message , please ?
Person1: Yes , certainly .
Person2:Can you tell her I'm waiting to speak to her ?
Person1: Yes , sir . I'll ring her on an inside line if you like .
Person2:Thank you very much .

Answer:
informal