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

Q: Sentence1: what is your price range for that? Sentence2: you selected attraction can you please correct so I can search. Sentence3: Can you give me the postcode and address please? Sentence4: What is the address for Gonville and Caius College? Sentence5: I'm happy to be of help. Take care. Goodbye. Sentence6: Pizza Express is a moderately priced Italian restaurant in the center of town. Do you need more information? Sentence7: The gonville caius college would be a nice attraction. Could I get the address please? Sentence8: I would recommend gonville and caius college, that is a nice campus in the centre area and best of all, admission is free, would you like more info? Sentence9: I need some information on a place called Pizza express. Sentence10: Thank you. I look forward to the day in town. Goodbye. Sentence11: I don't care about that but I would like the address and area of the college I visit. Sentence12: Yes, I'm looking for colleges to see in town. Can you help me with that? Sentence13: It is located on trinity street. Sentence14: Of course. The postcode is cb21db and it is at Regent Street City Centre. Can I help you with anything else today? Question: Who has spoken the sentence 9? (A) User (B) System

A: Answer: (B) System
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Q: Sentence1: That will work. What is the price and arrival time for that? Sentence2: Where would you like to travel from and to? Sentence3: Sure, I have 7 trains that would work. The closest to your requested time is the TR5110 that leaves at 20:34. Sentence4: That will cost you 16.50 pounds and you will arrive by 21:24. Sentence5: Certainly. Home from Home is a guesthouse on the north end of the city. It offers free internet and parking and is moderately priced. Would you like to book a room? Sentence6: The train should depart from cambridge and travel to peterborough. Sentence7: You too. Goodbye. Sentence8: I would like to book a train that is running on Tuesday and departs anytime after 20:15, can you help me with that? Sentence9: Thank you have a nice day. Sentence10: Your booking was successfull! Reference number is I5VKNKJ3 Sentence11: That is great. I also want to know about a hotel called home from home. Can you find it for me. Sentence12: Yes. I would like to book for 8 people for 3 nights starting from Saturday. Question: Who has spoken the sentence 9? (A) User (B) System

A: Answer: (B) System
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Q: Sentence1: I have no preferences. You can just pick one. I'd like it for 7 people for 5 nights starting from saturday. Sentence2: TR4494 will depart at 17:19 on saturday and arrive by 18:09. Would you like me to book it for you? Sentence3: I need it for Saturday and I want to arrive by 18:15. Sentence4: This is unavailable would you like to book a shorter stay or a different day? Sentence5: Let us know if you need anything else. Good bye. Sentence6: Great! You're booked for 3 nights at Bridge Guest House with reference number AH7L4RXZ . May I help with anything else? Sentence7: No, it does not offer that. Would you like something that does? Sentence8: Great! You have helped me tremendously. I don't need anything else. Thank you! Sentence9: Yes please. Can you book 7 tickets on that train? I'd like a reference number if possible. Sentence10: I am looking for a guesthouse to stay at in the moderate price range. Sentence11: When do you need that train? Sentence12: Does it have free parking? Sentence13: ok, I have a couple that meet that criteria. Would you like 3 or 4 stars? Sentence14: Yes, I need a train out of Peterborough into Cambridge, please. Sentence15: How about the a and b guest house? Sentence16: How about 3 nights for the same day and number of people? Sentence17: Booking was successful, the total fee is 92.4 GBP payable at the station. Reference number is : 8JPQ3AQT . Sentence18: Yes. I need free parking, and I prefer the southern part of town. Question: Who has spoken the sentence 7? (A) User (B) System

A:
Answer: (B) System
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