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'.
Input: Person1: What's holding us back on the plant expansion project ? We were supposed to see the specs on that ages ago.Why haven't I heard anything about it ? Did the whole project just vanish into thin air ?
Person2:No , sir . The plant expansion project has been delayed.There was a snag up in the fling process to get the necessary construction permits.It seems that the property we were slated to build on is also habitat for some endangered indigenous species .
Person1: You're joking , right ? No wonder we've been tied up with this project . I know the environmental impact statement will take forever to get approval if they've found anything endangered on the site . Are they positive there is evidence of endangered species actually living there ?
Person2:The environmental review board has a team on it now.Hopefully we'll know more by the end of the week .
Output:
formal