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

[Q]: Sentence1: Thank you, and have a nice day! Sentence2: How about the Alexander bed and breakfast in the town centre? It is cheap and has free parking. Sentence3: I have a Norwich bound train leaving at 18:36, price of 17.60 pounds and traindID of TR7776, would you like me to book it? Sentence4: Yes please, for all seven of us. Sentence5: Is that a 2 star hotel? Sentence6: I'm so sorry, the Lovell doesn't have the availability you're looking for either. Would you like to try to book for a shorter stay? Sentence7: I would like a 2 star hotel. Sentence8: Can you try booking a 1 night stay? I need the reference number if that works. I also need a train leaving Cambridge after 17:45, arriving in Norwich on Wednesday. Sentence9: I have booked your stay at Lovell Lodge. Your reference number is ATYKA57C . Would you like me to buy tickets train tickets also? Sentence10: Yes. Thank you very much. Sentence11: There are 2 moderately priced 2 star hotels on the North side of town: the Ashley Hotel and the Lovell Lodge. Would you like more information on one? Sentence12: Hi I am looking for a place to stay with free parking in the cheap price range. Sentence13: What about moderately priced places with 2 stars? Sentence14: And would that be for the seven people that are staying at the hotel? Sentence15: Not at the moment. Can I have the price and train ID though? Sentence16: Does the Lovell have 3 nights available? Sentence17: Could you book 3 nights at the Ashley for 7 people, please? We'll be arriving on Tuesday. Sentence18: No, I think that's all. Thanks! Sentence19: Is there anything else I can help you with? Sentence20: The Alexander B&B is a 4 star hotel. There are no cheap hotels with 2 stars that offer free parking. Do you want to broaden your search? Sentence21: I'm sorry, it isn't available for 3 nights. Would you like to arrive on a different day or stay for less time? Sentence22: We have several locations that suit your needs, would you like a 4 star hotel? Or is there any other accommodations you'd like to narrow down the list? Question: Who has spoken the sentence 9? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: Can you verify that the hospital has a transplant high dependency unit? Sentence2: Can you help me find a hospital nearby? Sentence3: Yes, it does. Here is the unit's phone number: 01223216811. Do you need any other information? Sentence4: I would like the address and phone number please. Sentence5: No that is everything. Thank You Sentence6: Sure, the phone number is 01223245151 and the address is Hills Rd, Cambridge. Sentence7: The nearest hospital to you is at Hills Rd, Cambridge. would you like their phone number? Sentence8: Alright sounds good. I hope everything is okay. Question: Who has spoken the sentence 4? (A) User (B) System
[A]: Answer: (A) User


[Q]: Sentence1: Yes I would like to book it for 4 nights for 1 person from Saturday. Sentence2: Those are all booked for the year due to events is a hotel okay? Sentence3: The Express by Holiday Inn Cambridge is the one in the east. Do you need any info on it? Sentence4: First we need to find you a attraction then we could book your taxi I think. Sentence5: No the area doesn't matter, and I know this sounds strange but I'm looking for a guesthouse with a 1 star rating. Sentence6: Could you possible check in the surrounding areas? I might as well also get a list of 2 star rated hotels. Do you mind? Sentence7: The south has cinema, entertainment, museum, nightclub, park and theatre. Which do you prefer? Sentence8: We have 23 Guesthouses that have free wifi, is there a particular area you want to stay in? Sentence9: Great, can I have the phone number and reference fee. Sentence10: I have 3 hotels that have a 2 star rating. Two are located in the north and one in the east, do you have a preference of area? Sentence11: Okay, I will work on booking this for you and be right back with you. Sentence12: I have made those reservations and your reference number is HF0MER2O . Sentence13: I would love a guesthouse but I do need wifi. Do you have any like that? Sentence14: Can you make a recommendation? Sentence15: Hi, I am planning a trip and need some help finding a place to stay. Sentence16: Okay, how about the one in the est please? Sentence17: I want to leave the hotel by 05:00. Going to the attraction. Sentence18: May i get the reference number? Sentence19: Just so I can get you the right information, are you interested in Byard art or tenpin? Sentence20: Great thanks I also need a taxi leaving the hotel by 05:00 Sentence21: I would recommend tenpin, which is an entertainment venue in the south. It's a lot of fun. Sentence22: somewhere in the south, sorry need the phone # and admission fee Sentence23: I hope you have a good trip. Have a nice day. Goodbye. Sentence24: Certainly, do you have any special requests or preferences? Sentence25: Unfortunately I don't have any information about their entrance fee but if you call them at 08715501010, they'll tell you. Will that be all today? Sentence26: Please send info on tenpin. Thanks for the help. Sentence27: OK, where are we taking the taxi to? Did we also need to book a restaurant or find an attraction? Sentence28: Thank you for the help. That's all for now. Question: Who has spoken the sentence 11? (A) User (B) System
[A]:
Answer: (B) System