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

[Q]: Sentence1: I'm sorry. I changed my mind. I don't want a guesthouse. Are there any hotels with 2 stars? Sentence2: Great that was all I needed today, thank you. Sentence3: Is there a particular area you would like to stay in? Sentence4: There isn't a guesthouse with 2 stars and free internet available. Is there another type of hotel I can look up for you? Sentence5: Great Glad I could be of help to you. Sentence6: I have you booked in the Ashley hotel. Your reference number is CW6YMT0B . Is there anything else I can do for you today? Sentence7: No, just any 2-star hotel with free wifi will do. Sentence8: Hi, I need a guest house please. Sentence9: Do you have a specific location you want to be? Sentence10: No, but I need free wifi and I would like a 2 star guesthouse please. Sentence11: I have 3 guesthouses all in the moderate price range. Would you like me to choose one for you? Sentence12: I found 3 for you all in the expensive price range. Can you please give me the details so that I may book it for you? Sentence13: Yes, how about a guesthouse with 3 stars and free wifi instead? Sentence14: I would like it for 6 people for 2 nights starting on Wednesday. Question: Who has spoken the sentence 11? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: Yes do you have the name of the hotel? Sentence2: Booking completed! Expect a red Ford to pick you up at the hotel at 10:30. Their contact number is 07439027429. Can I assist you otherwise? Sentence3: It is in centre of town and has 4 stars and is priced expensive. Sentence4: I have booked it here is the information:Booking was successful. Reference number is : 4AHCO6OI . Sentence5: Hi, can you give me some information on a particular hotel? Sentence6: The post code for nusha is cb17dy. I'm checking on your taxi reservation. Sentence7: I need 3 nights starting on Thursday. Should have enough room to accomodate 4 people. Sentence8: What nights are you looking to stay so I can check the availability? Sentence9: Ok, thank you. I will need to know what kind of car is picking me up. Sentence10: It's called the University Arms Hotel. Sentence11: Okay, please provide me with the postcode, and also I want a taxi to take me there. It should leave the hotel by 10:30. Give me car type and contact number Sentence12: No, but thanks for all your help! Goodbye! Sentence13: There are two entertainment attractions in the south. I suggest nusha. Sentence14: can you try entertainment ? Sentence15: Great, can you help me find a multiple sports place to visit in the south also? Sentence16: I'm sorry, there are no multiple sports venues in the south part of town. Would you like to try another area or attraction? Sentence17: Have a great day! Sentence18: I'd like to book a few rooms for Thursday. Are there rooms available? Question: Who has spoken the sentence 1? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: How about the arbury lodge guesthouse? Sentence2: great day and thanks for inquiring from us Sentence3: Actually yes you can help me find a hotel on the North end that offers free parking Sentence4: I'm so sorry about that, it looks like someone left the phone off the hook, i'll hang up now. good bye. Sentence5: Do you mean from the guesthouse to the restaurant? Sentence6: The reference number is R20I7FP5 do you need help with anything else? Sentence7: I've really got to go. I am late for work. Goodbye. Sentence8: It was my pleasure. thanks a gain. Sentence9: Ok, I've booked you a taxi. It will be a white toyota, with the contact number : 07693044050 Sentence10: The Arbury Lodge is located in the north part of town, at 82 Arbury Road. Do you want to make a reservation? Sentence11: I also need to get a taxi from the guesthouse to the hotel. Sentence12: How about an expensive Korean restaurant? Sentence13: Yes, excuse me. Can you please book a taxi that will arrive there by the reservation time? Sentence14: That sounds to be a good one. May i please have their address and description of the location? Sentence15: The address for Arbury Lodge Guesthouse is 82 Arbury Road. There are no expensive North European restaurants in Cambridge. Do you want to change the food type? Sentence16: Great, thank you so much! That's everything I needed. Have a great day! Sentence17: Actually, right now, I just need to have the address. Also, I need to find a restaurant. Expensive with northern European food. Sentence18: Oh, wait. I think maybe a guesthouse would better suit our needs. Sentence19: little seoul has great food, when would you like the reservation for and for how many? Sentence20: Six people at 17:45 on Wednesday would work great. Can I get a reference number please? Sentence21: welcome all the time Sentence22: There are 11 to chose from do you have a price range you prefer? Question: Who has spoken the sentence 12? (A) User (B) System
[A]:
Answer: (A) User