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

Sentence1: Booking was unsuccessful. Do you have a different time preference? Sentence2: Is it in the expensive price range? Sentence3: Yes book a table, thank you. Sentence4: I was happy to help, enjoy your meal. Sentence5: Sure, try booking that one for the same people, date, and time, please. Sentence6: Can you please give me a day and time that you would like to book a table for? Sentence7: No, that's all I need. Thank you for your assistance! Sentence8: I am looking for Korean food, in the Centre of town. Sentence9: No. How about finding another restaurant in the same area and price range. Sentence10: I've booked your table for 7 people on Monday at 13:45 at Kymmoy. Your reference number is 1MS5BUU6 . Is there anything else I can help you with today? Sentence11: There is one Korean restaurant in the centre, Little Seoul. Would you like the address and phone number? Sentence12: How about Kymmoy? It's an Asian restaurant in Expensive price range, located in Centre area. Sentence13: Yes, it is expensive. Are you interested in booking a table there? Sentence14: 13:45 on monday and a table for 7 please. I will need a reference number too. Question: Who has spoken the sentence 4? (A) User (B) System
Answer: (A) User

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
Answer: (B) System

Sentence1: I'd like to arrive by 18:30, but I can leave at any time. Sentence2: 10.10 pounds for one ticket Sentence3: Yes your reference number is BEVM8GPA . Sentence4: Ok, great and could you please confirm the departure time for that train? Sentence5: I want to travel on Tuesday. Sentence6: Sounds good enough to me. What is the price of the TR 9892? Sentence7: I would like to book this hotel for 4 people and 2 nights for Tuesday. Sentence8: The TR9892 leaves Stansted Airport at 5:24 and arrives in Cambridge at 5:52. The TR0135 would also work, it leaves at 14:24 and arrives in Cambridge at 14:52. Sentence9: I have 13 trains. The TR9892 leaves at 5:24, would that work? Sentence10: Thank you. I will also need a train to cambridge. Sentence11: I will be coming in from Stansted Airport heading into Cambridge. Sentence12: Ok, I've booked the cityroomz hotel for your party of 4, for two nights starting Tuesday. Sentence13: Can I have the reference number please. Sentence14: Thank you for using our service. Hope you have a great day. Sentence15: Okay great. Thank you! Sentence16: What day would you like to travel? Sentence17: Where will you be leaving from? Sentence18: Cityroomz is a 0-star, moderately-priced hotel in the center of town. They offer free internet, but no parking. Their address is Sleeperz Hotel, Station Road, cb12tz. Sentence19: Can you get me information on a hotel called cityroomz? Sentence20: Is there anything else that I can help you with? Sentence21: No, you have been a great help. That's it for now. Goodbye. Sentence22: There are 19 trains available that day. Is there a specific time you would like to book? Question: Who has spoken the sentence 9? (A) User (B) System

Answer: (B) System