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: I'm really sorry , Bob . I accidentally damaged your bike .
Person2:Uh-oh . It'll probably cost a lot to fix it .
Person1: I'll make it up to you . Let me know how much it costs and I'll give you the money .
[EX A]: informal

[EX Q]: Person1: What can I do for you , Ma'am ?
Person2:I want to buy a cell phone for my daughter .
Person1: How old is she ?
Person2:She is 17 . It's for her birthday .
Person1: We have a new-fashioned cell phone especially designed for young girls . The brand name is Nokia .
Person2:Thanks , but I want to have a look at the Motorola's products .
Person1: Sure . This is the one I will not hesitate to recommend . Its color and style is so attractive and also the quality is really reliable .
Person2:Sounds perfect . I'll take the pink one . Can you pack it for me ?
Person1: Sure . By the way , here are some free adornments . Would you like one ?
Person2:Why not ? The Sweetheart pendant matches the cell phone well . I'd take this one .
Person1: Have a seat over there . I'll pack it up for you right away .
Person2:Thanks .
[EX A]: informal

[EX Q]: Person1: When do you celebrate Thanksgiving ?
Person2:On the fourth Thursday of November .
Person1: What do you eat on that day ?
Person2:People cook turkeys for Thanksgiving dinner .
Person1: Anything else ?
Person2:Besides the turkeys , we'll also have other delicious food . Such as pumpkin pies , puddings , mashed potatoes , bread , a lot of fresh fruits and vegetables .
Person1: I'm almost hungry .
[EX A]:
formal