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

Sentence1: The Lensfield does have free wifi. Their phone number is 01223355017 and their postcode is cb21en. Sentence2: First, can you give me the phone number, postcode, and tell me if they have internet? Sentence3: Is it a guesthouse? I'd really like a guesthouse with 3 stars, if possible. Sentence4: That is perfect, thank you for your help. Goodbye. Sentence5: Unfortunately, I can't find a 3-star expensive guesthouse with free parking. Would you like me to find something else? Sentence6: Sure, The Lensfield hotel is in the south. It is very nice, can I book it for you? Sentence7: Express by Holiday Inn Cambridge is an expensive hotel with free parking. Their phone number is 01223866800. Sentence8: I'm looking for an expensive place to stay with free parking please. Sentence9: Let us know if you have any more questions! Sentence10: How about a hotel instead of a guesthouse? Question: Who has spoken the sentence 2? (A) User (B) System
Answer: (A) User

Sentence1: I recommend university arms hotel. it is rated 4 stars and is expensive. Their number is 01223351241. Sentence2: Can you help me find a place to eat serving british food in the moderate price range? Sentence3: I have several listings. Please provide the part of town you prefer so I can narrow it down. Sentence4: Ok, can you book a room for our group or are you expecting me to call them? Sentence5: Yes, I'd like a hotel in the same area. Sentence6: In the centre if possible Sentence7: can please provide more information to help us serve you better. Sentence8: No thank you that will be all for today Sentence9: I can book it for you. Sentence10: Yes please, could you book a table for 6 at 16:45 on Wednesday? Could i get a reference number too please? Sentence11: sure I can help you with that, when are you planning your stay? Sentence12: i dont mind any price. Sentence13: How about the oak bistro located at 6 lensfield road. The post code is cb21ab and phone number 01223323361. Can I book this for you? Sentence14: I actually need a moderate hotel in the centre. I don't need free parking. I will need the hotel booked for 6 people, 2 nights, on Wednesday, please. Sentence15: You have your choice of an expensive or moderate price range in that area, do you have a preference? Sentence16: Wednesday, for 2 nights. Sentence17: Ok. I have a table for 6 booked for you at the Oak Bistro. Your reference number is 9SGIM1SR . Is there anything else I could help with today? Sentence18: It needs to be close to my hotel and open late. Question: Who has spoken the sentence 5? (A) User (B) System
Answer: (B) System

Sentence1: 1 room, and I'll need it for 2 nights starting Friday. Sentence2: No it doesn't. Sentence3: Booking was successful. Reference number is : B823WKVK . Sentence4: I am also looking for a train on the same day to Cambridge Sentence5: Yes, and Thank you kind person for helping me! Sentence6: I am looking for a place to stay. The hotel should be in the moderate price range Sentence7: Booking was successful, the total fee is 23.6 GBP payable at the station. Your reference number is S5436QTX . Can I help you with anything else? Sentence8: I would like a guest house, with free parking. Sentence9: I have three moderately priced hotels. Do you need internet and/or parking? Sentence10: Train TR5686 leaves london kings cross. Would you like a ticket? Sentence11: Does it matter what side of town it is on? Sentence12: Thank you goodbye. Sentence13: If everything is fine. Then I hope you have a wonderful day. Sentence14: You're welcome. It's really my pleasure. Sentence15: No that's everything. You've been great thanks. Sentence16: Ok how about acorn guest house. They are moderately priced and have 4 stars. How many rooms and how long is your stay going to be? Question: Who has spoken the sentence 3? (A) User (B) System

Answer: (B) System