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

Example Input: Sentence1: Nothing in particular. Any recommendations? Sentence2: Yes, please coming in on monday for 5 nights for 3 people. Sentence3: We have amazing various of attractions in the centre area! What type of attraction are you looking for? Sentence4: I booked it for you. Your reference number is as follows: 5MM5C3UC . Is there anything else I can assist you with today? Sentence5: Any area is fine are there any with a 3 star rating? I don't need free parking or internet. Sentence6: Let me suggest the Museum of Archaeology and Anthropology. Their admission is free and the phone number is 01223333516. Sentence7: Would you like me to book it for you? Sentence8: Happy to help! Have a good trip! Sentence9: I have many moderate priced hotels available. What part of town would you prefer? Sentence10: alpha-milton guest house is in the north. Would you like me to book you a room? Sentence11: Can you book it for me and get a reference number ? Sentence12: i need a good place to go in the centre Sentence13: That will be all, thanks! Sentence14: I also need a moderate priced place to stay. Question: Who has spoken the sentence 7? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: I am also looking for Cambridge Contemporary Art. Sentence2: Can you give me their entrance fee and phone number? Sentence3: Maybe. What is the star rating and price range on that hotel? Sentence4: Are there any available rooms in the Autumn House? Sentence5: You're welcome. Enjoy your stay. Sentence6: You are all set. Your taxi would be a red lexus and you can contact them at 07614169632. Is there anything else I can help? Sentence7: no problem. Their phone number is 01223324222 and the entrance fee is free. Sentence8: Sure, I have found it for you. Is there anything you want to know about? Sentence9: That's all i need. Thank you so much for the help! Sentence10: Autumn house has a guesthouse. When are you looking to stay? Sentence11: it has four stars and its cheap Sentence12: Awesome. Can you also help me to book a taxi from the hotel to the attraction? I want to leave the hotel by 24:45. Question: Who has spoken the sentence 5? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: I'm looking for a Lebanese restaurant that is expensive in price. Sentence2: Thanks, I also need a train from cambridge to peterborough afterwards Sentence3: Yes I was able to make that reservation at 15:45 your reference number XH49SBME . Sentence4: There are 16 trains leaving on Thursday after your dinner. I would think 2 hours should be long enough? So there is one at 18:06 I can recommend. Sentence5: I have the Ali Baba restaurant in the centre of town. They are moderately priced. Can I help you in reserving a table? Sentence6: I'd like my train to arrive by 16:45, please. Sentence7: Is there an opening available at 15:45? I'll also need the reservation number if it's available. Sentence8: The booking was unsuccessful, would you like to try another time? Sentence9: You are welcome. Thank you for contacting the Cambridge TownInfo centre. Good bye. Sentence10: I am very sorry there are no results for an expensive lebanese restaurant. Would you like to try for a different type of cuisine? Sentence11: Really? The Ali Baba is Lebanese? Sentence12: Yes I would like to book a table for 7 people at 16:45 on thursday. Sentence13: Yes, that sounds like it will work for me. Thank you for the information. That should be all I need today. Sentence14: No I'd really like lebanese, is there one in the centre area? Sentence15: Yes. The ali baba is lebanese. Would you like to book a table? Sentence16: I have train TR4814 that will be departing at 15:34 and will get you there by 16:24. Would that be something that interests you? Question: Who has spoken the sentence 3? (A) User (B) System
Example Output:
Answer: (B) System