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

[EX Q]: Sentence1: Probably the emergency department, the phone number is 01223217118. Sentence2: Thank you for the information. Sentence3: Which department should I contact for a sprained ankle? Sentence4: Nope that is it. Thank you Sentence5: I want to find a hospital in town Sentence6: Thank you , could you provide me with the email address? Sentence7: Addenbrookes Hospital is located at Hills Rd, Cambridge. Is there a particular department you're looking for? Sentence8: You are very welcome. Is there anything else I can help you with today? Sentence9: You're welcome. Thank you for using our service. Sentence10: Unfortunately there isn't an email address listed here. Sentence11: The address is Hills Road, Cambridge. Sentence12: Can I have the address please. Question: Who has spoken the sentence 7? (A) User (B) System
[EX A]: Answer: (B) System

[EX 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
[EX A]: Answer: (B) System

[EX Q]: Sentence1: You're very welcome! Have a great day! Sentence2: It will be for 16:45 on tuesday. Sentence3: I need to go between the hotel and the restaurant. Arriving by the booked time, please. Sentence4: Booking completed! Booked car type : grey skoda Contact number : 07990098942 Sentence5: I need that in the north please. Sentence6: Yes could you please make those reservations? Sentence7: does it have free parking ? Sentence8: I'm hoping you can help me find a guesthouse. Parking is optional. Sentence9: In that case I would recommend the Bridge Guest House, it has a 3 star rating and offers both free WiFi and free parking. Would you like to book it? Sentence10: Also I need to find an expensive chinese restaurant book the table for 3 at 16:45 on tuesday Sentence11: Okay, I can help with that. What is your departure site and destination? Also, when would you like to leave or arrive by? Sentence12: Is there a particular part of town you would like to go to? Sentence13: Thank you, it has been a pleasure assisting you today. Enjoy your trip. Goodbye Sentence14: There are 3 people in the group. Sentence15: Any type that you have available. Sentence16: Can I have the price range and phone number? Sentence17: I need a hotel that has free parking Sentence18: which type hotel do you want? Sentence19: It has a 4 star rating and does provide internet. Would you like a reservation? Sentence20: Yes, please. I need a taxi. Sentence21: I have 2 chinese restaurants in the north, the hakka and the hotpot, both expensive. Phone number is 0122568988 and 01223366552 respectively. Would you like me to book reservations for you? Sentence22: Your booking for Hakka was completed successfully, reference number PM03Z53S . Can I help you with anything else? Sentence23: a and b guest house is a nice one. Do you want to book ? Sentence24: How many people are in your party? Sentence25: What day and time would you like the booking for? Sentence26: Thank you, same to you. Sentence27: Does it have a 3 star rating? I'm also needing free wifi on this trip. Thanks for helping me. Sentence28: Parking is not included but internet is, do you want to book or search for something else? Sentence29: The price range is moderate and the phone number is 01223247942. Sentence30: Thank you so much. That is all I need today. Question: Who has spoken the sentence 28? (A) User (B) System
[EX A]:
Answer: (A) User