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:       Is there anything I can do for you ?  
 Person2:Yes , the fried chicken is too hard to eat . I suggest you bring me another one free of charge .  
 Person1:        Well , I think you should go for our manger . I will call him here .  
 Person2:OK . I will talk to him direcly . 

formal