You will be given a definition of a task first, then some input of the task.
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: How are Zina's new programmers working out ?
Person2:I hate to admit it , but they're good . And fast . The Filipino kid is a genius .
Person1: So you'll make the Stars.com deadline , and have us up and running next week ?
Person2:It'll be close , but we'll make it .
Person1: Good . After Stars.com starts paying us , we won't need Vikam's cash anymore .
Person2:And if we don't need them , we won't need Zina , either .
Output:
formal