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'.
Q: Person1: Whoa , look at all those ice cream choices !
Person2:Yes , that is a lot of choices . What is your favorite ?
Person1: I love anything with chocolate the best .
Person2:I like chocolate myself .
Person1: Is there any kind of ice cream you don't like ?
Person2:I really don't like any ice cream with nuts in it .
Person1: I haven't ever cared for that myself .
Person2:Have you ever had garlic ice cream ?
Person1: That sounds absolutely disgusting !
Person2:It was . Let's stick with the regular choices today , though .
A:
informal