Detailed Instructions: 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'.
Problem: Person1: Julia , are you free tonight ?
Person2:What's up ?
Person1: I want to invite you to go to the movies .
Person2:Are you asking me for a date ?
Person1: Yes .
Person2:I don ' t like to go to the movies on a date . It's noisy there .
Person1: Where do you want to meet ?
Person2:Let's go to the coffee shop then . It's quiet there .
Person1: What time should we meet ?
Person2:How about seven ?
Person1: All right .
Solution:
informal