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'.
Q: Person1: Is there anything I can do for you ?
Person2:I would like to go to Europe for a visit ? Can you recommend me an interesting city ?
Person1: Why not go to Paris ? It's famous for Arch of Triumph , Eiffel , versailles and place de la Concorde .
Person2:Do you have a package tour to Paris ?
Person1: Of course , we have .
A:
formal