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: Hello , I want to make a reservation for a Qingdao cruise .
Person2:When will you set out ?
Person1: Next week .
Person2:OK . There is one on Wednesday .
Person1: Good ! How much does the sea view stateroom cost for per person ?
Person2:Eight hundred yuan .
Person1: I see . Does that include fees for shore excursions ?
Person2:No . It doesn't . But it includes all other on board activities .
Person1: Thanks a lot . Give me one ticket , please .
A:
informal