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

Ex Input:
Sentence1: It has a 3 star rating. Sentence2: Could you tell me if The Lensfield Hotel has at least a 4 star rating? Sentence3: Find me an expensive place to stay on the south side, please. Sentence4: Yes I would like to make a booking. Sentence5: You're welcome. Have a great day! Sentence6: No, The only hotel I see has a 3 star rating. Sentence7: You know I also need someplace to eat in that is also cheap, and also in the south area. Sentence8: There is only one expensive hotel on the south side. Would you like to book at The Lensfield Hotel? Sentence9: Okay, how many guests and how many nights would you like me to book? Sentence10: How about a hotel in the cheap price range? Sentence11: I would also like a taxi to arrive by my booked time. can i have the taxi contact number and car type Sentence12: Lets go with The Lucky Star. I need a table for 8 people at 13:45 on Friday. Sentence13: Great it's all booked the reference number is MXDZ66IK Sentence14: You have your choice of The Lucky Star, with Chinese cuisine, or Nandos, a portuguese restaurant. Sentence15: Sure, the car will be a blue lexus and the contact number is 07235433780. Anything else I can help you with? Sentence16: I see, are there any cheap 4 star hotels on the south side? Sentence17: Nope, that is all. Thank you very much. Sentence18: Rosa's bed and breakfast is a guesthouse is a 4 star. Question: Who has spoken the sentence 2? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: No, I'm not picky. Sentence2: I need a hotel with FREE parking Sentence3: The acorn house is moderately priced, 4 stars, and in the north. Sentence4: What is your arrival date and how many days will you be staying, please? Sentence5: I am looking for a place to stay. The hotel should have a star of 4 and should be in the type of guesthouse Sentence6: Thank you goodbye Sentence7: Okay. What part of town do you want to stay in? Sentence8: How about acorn house? They have excellent reviews. Sentence9: I'm sorry I don't need a reservation. Could you just confirm the price range, postcode and what area that is in? Sentence10: Thanks so much. I won't be needing anything further today. Sentence11: You read my mind. Yes, free parking. Sentence12: Do you have a specific pricerange you are looking for? Sentence13: Any part of town as long as it includes free parking. Sentence14: Yes, if Acorn House has free parking, please book my reservation. Question: Who has spoken the sentence 13? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Ok, great! How many guests will there be and how many days would you like to stay? Sentence2: Thanks, that's all I need today. Sorry for making you repeat yourself like that! Have a great day, goodbye! Sentence3: Do they offer free breakfast with their rooms . Sentence4: There are, yes. There's the Abbey Pool and Astroturf Pitch in the east, the Jesus Garden Outdoor Pool and Kings Hedges Learner Pool north, and Parkside Pools in the centre. Sentence5: Sure, we have many hotels in Cambridge. What area of town would you prefer? Sentence6: I don't need a reservation yet. I would like the phone number and postcode, though. Sentence7: There is a grey Honda booked for you to go from the pool to your hotel at 4:45. Their contact number is 07636297454 in case you need to reach them. Sentence8: I'm sorry, we don't have any hotels that meet that criteria. Might you be willing to accept a place with 4 stars and free parking? Sentence9: Are there any swimming pools in town? Sentence10: It is expensive. I can check on a cheap hotel if you'd prefer? Sentence11: Yes, what time do you need the taxi? Sentence12: No, I really want to stay at the Marriott. Sentence13: That's pool way, whitehill road, off newmarket road. Sentence14: The postcode is cb58nt. Sentence15: I'd like to leave the pool by 4:45. Sentence16: Yes, just one more thing. What's the address of the Abbey Pool? Sentence17: Thank you. Could you book me a taxi from the pool at 4:45 to go back to my hotel? Sentence18: Can you book a taxi for me? From the pool to the hotel? Sentence19: Hi, can you help me find a hotel, please? Sentence20: I'd like to get a little more information first. What is the price range at the Huntingdon Marriott Hotel? Sentence21: We have three hotels matching that search. Could I book a room for you at the huntingdon marriott hotel? Sentence22: Yes, I would like to book a four star hotel then. Sentence23: No problem at all, and you're quite welcome. Thanks for contacting the Cambridge TownInfo Centre and have a great day! Sentence24: I want the Abbey Pool. What's its postcode? Sentence25: The huntingdon marriott hotel's number is 01480446000, it's postcode is pe296fl. How else can I assist you? Sentence26: I have a booked a grey honda for you. The contact number is 07636297454. Can I assist you with anything else today? Sentence27: I'm sorry but I don't have access to that information. Sentence28: I don't care where, I just need it to be 5 stars and include free parking. Question: Who has spoken the sentence 24? (A) User (B) System

Ex Output:

Answer: (A) User