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

Sentence1: Yes. I need a hotel with free parking. I would like it in the moderate price range. Sentence2: I booked you a yellow volkswagen and their number is 07162096037 Sentence3: Thank you for correcting that. Can you book a taxi for me? I'd like to go from the Broughton House to the hotel, and leave by 5:30. Sentence4: No I don't care about the area, but I do want a hotel and not a guest house. Sentence5: There are 14 hotels that meet your criteria, do you have a preference in the area? Sentence6: That sounds interesting! May I have their phone number please? And what is the fee to get in? Sentence7: Ashley hotel is a hotel located in the north part of town and is in the moderate price range. It also offers free parking and internet. Does this suit you? Sentence8: There is a museum on 98 King Street named Broughton House Gallery. Sentence9: Okay great. Do not hesitate to call us if there is anything else you need. Sentence10: That sounds good, can you also provide me with the star rating for it? Thanks Sentence11: We have quite a few of those. Do you have any other preferences? Price range, perhaps? Sentence12: Great! I'm also looking for a place to go in the centre. Any suggestions for something fun? Sentence13: Yes, I am looking for a hotel in the moderate price range. Sentence14: I will also need a taxi to get me between the two places, the Ashley hotel and Broughton House. Sentence15: The Ashley Hotel is a 2 star hotel. Sentence16: I am sorry. There must have been a system glitch. The phone number for the broughton house gallery is 01223314960 and the entrance fee is free. Sentence17: Thank you! I have everything I need now. Sentence18: Yes, their number is 01223314960 and the entry fee is free Question: Who has spoken the sentence 5? (A) User (B) System
Answer: (B) System

Sentence1: We have 13 trains meeting your criteria. Do you have any idea how early you want to leave? The first train leaves at 11:32 and then every hour after that Sentence2: Are there any cheap options in the centre of town? Sentence3: We can take care of that too, but let's get your restaurant squared away first - in order to provide an address I'll need to know what type of cuisine? Sentence4: Whichever one you think is best please. Sentence5: to cambridge from broxbourne. i need to leave after 11:15 please Sentence6: Where will you travel too and from? Sentence7: Thank you for using the Cambridge TownInfo centre. Goodbye. Sentence8: excellent. I will need the train booked for 5 as well. Sentence9: It has been booked. You reference number is UCICW103 . Sentence10: I recommend the Dojo Noodle Bar. They're located at 40210 Millers Yard, City Centre. Sentence11: I will be traveling on Sunday. Sentence12: Hi. Can you help me find a restaurant? Sentence13: and what day will you be traveling on? Sentence14: The train should leave broxbourne after 11:15 so the 11:32 is a good choice. There are 5 of us traveling together. Please book. Sentence15: There are a lot of options in Cambridge. Can you please be more specific? Sentence16: Yes, there are chinese, asian oriental, indian, italian, spanish, portuguese, modern europe, and mediterranean available. Sentence17: Great. Thank you so much. Sentence18: Can I have the address? I am also looking for a train that leaves on Sunday to Cambridge. Question: Who has spoken the sentence 16? (A) User (B) System
Answer: (A) User

Sentence1: Sure thing!. There are 69 restaurants in the centre. Is there a specific cuisine or price range you're looking for? Sentence2: I have found 9 Indian restaurants. Do you have a price range in mind? Sentence3: Excellent. That's all I need. Sentence4: Great! Is there anything else I can assist you with? Sentence5: Not really. But I am also interested in finding some architecture to look at. Sentence6: The church is in the centre area, its phone number is 01223452587, and the entrance fee is free. Sentence7: Hello! Can you help me find a restaurant somewhere in the center of Cambridge please? Sentence8: Yes, I'm looking for an indian restaurant. Sentence9: Thank you and have nice visit. Sentence10: No, that will be all today. Sentence11: May I get the area of the church, phone number, and entrance fee? Sentence12: I recommend the All Saints Church, located in the centre. Would you like more information? Question: Who has spoken the sentence 4? (A) User (B) System

Answer: (A) User