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'.

[EX Q]: Person1: Here's the picture of my family .
Person2:Can you point out your mother for me ?
Person1: OK.She ' s near-sighted , with a pair of glasses on her nose.She is the only one wearing glasses in my family .
[EX A]: formal

[EX Q]: Person1: Let's go for a drink after work .
Person2:Nothing doing .
[EX A]: informal

[EX Q]: Person1: Jane's mother always wants her to marry a big shot . J
Person2:That is just wishful thinking . The cost of higher education has increased in recent years , faster than the cost of living . So she wants Jane's brother to go on studying and earn his doctorate by means of it .
Person1: But it's unfair for Jane .
[EX A]:
informal