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

Q: Sentence1: Yes, please provide a suggestion. Sentence2: Can you find me a good restaurant in the city centre? Sentence3: Okay, how about Eraina that's on Free School Lane City? Sentence4: Sounds great. Would you book me a table for 8, for Monday at 19:00? Sentence5: There are 11 museums is that area. The great thing is they are all free. Do you want additional information on any of them? Sentence6: Thank you so much for all your help. Sentence7: They are all located in the centre the same as the restaurant. Would you like me to recommend one? Sentence8: Are there any entertainment venues near the restaurant? Sentence9: Your table is booked! Reference #: GV2YF6H5 . The table will be reserved for 15 minutes. Can I assist you with anything else today? Sentence10: You are welcome. Enjoy your time in Cambridge. Goodbye. Sentence11: What area are they in? Sentence12: The fitzwilliam museum has amazing art and sculpture. The address is trumpington street and the phone number is 01223332900. Do you want more information? Sentence13: Your red toyota has been booked and its contact number is 07932820731. Sentence14: there are quite a number. what is your price range? Sentence15: The attraction should be in the same area as the restaurant and should be in the type of entertainment. A museum Sentence16: I will also need a taxi from the attraction to my dinning. Sentence17: I don't really have one but would like to try a European restaurant. Sentence18: There are 44 options available. Is there anything particular you are interested in ? Question: Who has spoken the sentence 15? (A) User (B) System

A: Answer: (B) System
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Q: Sentence1: There is a restaurant called Thanh Binh. Would you like me to book a table? Sentence2: Yes i would like a table for 7 people on monday at 13:15 Sentence3: We would prefer vietnamese please. In the west area? Sentence4: How many tickets would you like me to book? Sentence5: The travel time is 49 minutes. Would you like to know any more info? Sentence6: Thank you, what is the arrival time? Sentence7: Your reservation has been set for Monday at 12:15 for 7 people. The reference number is 3MTLQCBA . Can I do anything else for you? Sentence8: I am leaving from Cambridge and headed to Stevenage. I would like to leave after 17:30 please. Sentence9: Just one ticket, please. Sentence10: Certainly. The train will arrive at 20:10. Can I help you with anything else? Sentence11: Can you tell me when that train will be arriving in stevenage? Sentence12: Alright, TR6692 looks like your best bet. Would you like me to book you passage? Sentence13: Thank you I also need a train on tuesday leaving after 17:30 Sentence14: I think that about does it. Thanks for the help today. Sentence15: I need to find a cheap place to eat. Sentence16: Booking was unsuccessful do you have any other preference? Sentence17: Can you try 12:15 on Monday? Sentence18: I've booked that ticket for you. The reference number is FTLHURXQ, and the total fee is 12.8 GBP. Sentence19: It was my pleasure to assist you. Thanks for using our service. Have a wonderful day. Goodbye. Sentence20: Yes. Please book that for me. Thanks so much! Sentence21: I can find that for you. What cuisine are you interested in? Sentence22: I would be happy to help with that. Can you tell me the departure city and where you are going? Question: Who has spoken the sentence 11? (A) User (B) System

A: Answer: (B) System
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Q: Sentence1: I would like to leave on Tuesday. Sentence2: Is that just Pizza Express or Pizza Express Fen Ditton? Sentence3: I will be departing from cambridge. Sentence4: That's all I needed today. Thanks for your help. Goodbye! Sentence5: Pizza express is a moderately priced italian restaurant in the centre. Do you want a reservation? Sentence6: Ok! You're booking was successful. Your reference number is 662ALFUF . Anything else I can do? Sentence7: Hi. Can you help me find a train? Sentence8: Can you also help me find some information on a restaurant? It is called Pizza express. Sentence9: I'm going to broxbourne. Sentence10: I sure can! Do you have a destination in mind? Sentence11: I can't make that reservation right now. Is there anything else I can help you with? Sentence12: Is there a certain time you would like to leave? Sentence13: Can you try for Thursday then? Sentence14: Booking was successful, the total fee is 143.19 GBP payable at the station . Reference number is : ZKT87GL0 . Sentence15: I'd like to leave at 20:15. There will be 8 people traveling with me. Sentence16: I am always happy to assist! Bye! Sentence17: Yes please, 8 people at 12:30 on Tuesday. Sentence18: Where will you be leaving from? Sentence19: Just Pizza Express please. Sentence20: Ok. What day will you be traveling? Question: Who has spoken the sentence 7? (A) User (B) System

A:
Answer: (B) System
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