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:       On , darn . The grocery store is closed .  
 Person2:Yeah , this one closes at ten . We could drive to the 24 - hour store on sixth .  
 Person1:        Alright . We are out of everything .  
 Person2:I wish the store close to us was open 24 - house a day .  
 Person1:        I know , our schedules are so weird . Sometimes , the little corner store is the only thing within walking distance that ’ s open when we get home .  
 Person2:Yeah , and the prices there are very high .  
 Person1:        I know . Three dollars for milk . 

informal