You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Input: Consider Input: Sentence1: Would you prefer Indian food or Italian food? Sentence2: Curry Prince is a moderately priced restaurant in the east part of town that serves Indian food. Would you like the phone number? Sentence3: I want a moderately priced restaurant in the east part of town. What is the phone number? Sentence4: You're welcome, goodbye. Sentence5: Awesome, thank you! Goodbye! Sentence6: The phone number for Curry Prince is 01223 566388. Sentence7: I don't care. Give me their phone number. Sentence8: Yes give me the phone number. Question: Who has spoken the sentence 7? (A) User (B) System

Output: Answer: (B) System

Input: Consider Input: Sentence1: Unfortunately, I am not seeing any 4 star hotels that are moderately priced in the centre. We could try a cheaper hotel or a guesthouse? Sentence2: Sure do. Their address is fulbourn, postcode cb15dh. Phone number is 01223295264, and entrance is free. It's a museum on the Eastside. Sentence3: Nevermind. Do you have info on gallery at twelve a high street. Sentence4: Thank you very much for your help, have a nice day. Sentence5: Thank you, enjoy your stay in cambridge. Sentence6: Of course. We have so many attractions! What part of town will you be in? Sentence7: I will be visiting Cambridge soon and can't wait to see some of your local attractions. I do need your help with some information. Sentence8: I'm sorry, but there are no cheap hotels in the center of town, either. The only cheap hotel is on the west side. Sentence9: How about in the cheap price range? Sentence10: I have two options. Would you prefer a hotel or a guesthouse? Sentence11: I need a 4 star room in the centre please. Sentence12: A hotel in the moderate price range. Thank you! Question: Who has spoken the sentence 4? (A) User (B) System

Output: Answer: (A) User

Input: Consider Input: Sentence1: Yes, I would like to book this. There are 5 people that will be staying for 4 nights starting Saturday. Can I get a reference number? Sentence2: I would like to take a train to leave cambridge. Sentence3: I need a guesthouse that has free wifi Sentence4: Thank you very much. That is all. Sentence5: TR0797 leaves cambridge at 19:34 and arrives in peterborough at 20:24. Would you like to book tickets for this train? Sentence6: There are 12. Is there a star rating you would like? Sentence7: The TR3347 meets your current criteria, but you have a lot of options. Would you like to narrow it down further by departure time or arrival time? Sentence8: Your hotel has been booked. Your reference number is ZNMV4ENM . Can I be of further assistance? Sentence9: Your booking was successful. The total for 5 people is 82.5 GBP and your reference number is 4G3J82OG . Is there anything else I can help with? Sentence10: Yes please. I need tickets for 5 people and a reference number. Sentence11: Honestly, I always stay at the same place when we travel there, so I could really use a recommendation. Any one will do just with wifi and moderate pricing. Sentence12: There are lots of options. What area would you like to stay in? Sentence13: I need to arrive by 20:30. Sentence14: I would recommend the Kirkwood House. It is located in the north. It has 4 stars and free parking and wifi. They are located at 172 Chesterton Road. Sentence15: You're welcome, I was glad I could help. Don't hesitate to contact us if you think of anything else you need. Sentence16: I have 1,414 trains that are departing Cambridge this week. What day will you be traveling on? Sentence17: I'm not picky. Where would you recommend that is in the moderate price range? I'll need free parking, too. Sentence18: I'm going to peterborough on wednesday Question: Who has spoken the sentence 10? (A) User (B) System
Output: Answer: (A) User