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 did you learn at the workshop you went to yesterday ? Do you think it was worth the investment to go ?
Person2:Yeah , I really got a lot of the session . The workshop topic was resolving personal problems . It was led by a professional human resources director . The teacher had a lot of experience , and I think we were all given a really good base to start with .
Person1: The workshop was only one afternoon long , do you really think you can learn that much in only a couple of hours ?
Person2:It depends on the topic , the teacher , and the way the course is set up . Yesterday , even though we only had a short time to discuss the issues , the workshop got us all thinking . We learned some very basic , but very useful methods of dealing with personnel issues .
Person1: Sounds like you really learned a lot .
Person2:I did ... I just hope I can implement all these great ideas that we shared .
formal