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:       Welcome back , soccer fans . My name is Rick Fields and , as always , I am joined by my commentating wingman , Bob Copeland .  
 Person2:And we ’ re on the brink of soccer history today , as Ecuador and Brazil are tied one-one as we begin the second half of the 2022 World Cup !  
 Person1:        The ref calls the players for the kick off , and here we go ! Ecuador quickly passes the ball to the midfield , but , oath , it ’ s out of bounds .  
 Person2:That will be a throw in for Brazil . Adriano has the ball and makes a long pass to Robin , and the ref has called him offside .  
 Person1:        No question about it . He was offside by a mile ! We have a goal kick for Ecuador . Edison Mendez heads it to Valencia , he shoots ! Deflected by the defender and we have a corner kick .  
 Person2:Delgado takes the corner . We have a foul ! Oh no , Did , the goalkeeper , has fouled the Ecuadorian player ! He gets a yellow card and that will be a penalty kick !  
 Person1:        This is the perfect opportunity for Ecuador to get ahead in this match and become World Champions ! He gets ready for the kick . He shoots ! and he ... 

informal