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

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 do not care about the area but I would like it to be expensive. Sentence2: How about the Gonville Hotel which is centrally located? It has internet and is expensive. Sentence3: I found 5 hotels matching your request. I would recommend Huntingdon Marriott Hotel located in the west. It has a 4 star rating. Sentence4: Will you be needing a reference number? Sentence5: On what day will you be checking in? Sentence6: 4 people will be staying Sentence7: I also need a place to stay? Sentence8: Your table will be reserved for 15 minutes. Your reference number is GDZZ5T1Y . Can I assist you further? Sentence9: That is all, thanks. Sentence10: Booking was successful. Reference number is : M6FRXJOV . Sentence11: I have many to choose from. Do you have a preference for internet or parking? Sentence12: Alright! How many people will be staying starting what day? Sentence13: There are 11 European style restaurants. What price ranges are you looking for? Sentence14: Yes, I would like it to have internet. Sentence15: That sounds perfect. Let's book it. Sentence16: There are 33 hotels to choose from. Can we narrow this down? Are you interested in a particular part of town or specific price range? Sentence17: Expensive price range. Please book it for 4 people at 18:15 on Monday Sentence18: Can you help me find some european food in Cambridge? Sentence19: How about price range? The hotel should also be very expensive. I won't settle for less and neither will Fi-Fi. Sentence20: I will be staying on Monday. Sentence21: Yes I will definitely need that. Sentence22: Great. If you need help in the future, please contact us. Enjoy your stay. Question: Who has spoken the sentence 16? (A) User (B) System

A: Answer: (A) User
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Q: Sentence1: That's all I needed today. Thanks for your help. Goodbye! Sentence2: Okay, the three results are the same. I still recommend charlie chan. Do you need more help today? Sentence3: Yes, I'm also looking for a cheap Chinese food restaurant. Can you recommend one? Sentence4: I don't have a particular area in mind but I do also need free parking please. Sentence5: How about the hamilton lodge. It is in the north of town and meets your requirements including parking. Sentence6: I should have mentioned I am looking for a restaurant in the centre. Sorry about that. Sentence7: Sure, there are 4 options. I recommend charlie chan. would you like a booking? Sentence8: that sounds nice but will you book it for 7 people and 4 nights starting from wednesday Sentence9: Thanks for trying. Let's do Thursday, please. Sentence10: I would like a 3-star hotel with free WiFi, please. Sentence11: Booking is all set your ref number is 05MF6IQL Sentence12: I'm sorry, I am unable to book it for that time. Do you have another time that will work? Sentence13: Your booking was successful, the reference number is CUY4J5PR . Is there anything else I can help you with today? Sentence14: Yes, please book that restaurant for me. It'll be 7 people on wednesday at 14:45. I'll definitely need a reference number. Sentence15: Yes, there are 5 different options to choose from. What area will you be staying in? Sentence16: Thank you enjoy the rest of your day! Question: Who has spoken the sentence 4? (A) User (B) System

A:
Answer: (A) User
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