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: May I have the menu , please ?
Person2:Oh . I am sorry , here you are . May I suggest our lunch special ?
Person1: Could I have a few more minutes ?
Person2:Of course . I will be here minutes later .
Solution:
informal