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: Have you heard the news ?
Person2:I haven't heard anything .
Person1: Deborah had her baby last week .
Person2:Nobody told me .
Person1: I thought you heard .
Person2:I really wasn't told anything .
Person1: She was a cute 8 pounds 6 ounces .
Person2:Wow , how exciting .
Person1: I know , you should really go and see her and the baby .
Person2:Of course I will .
Person1: I just wanted to let you know what happened .
Person2:I appreciate that .
informal