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

Input: Consider Input: Sentence1: I sure can. What type of place are you looking for? Sentence2: I'm looking for a place to stay, can you help me out? Sentence3: I'm looking for a guesthouse that's moderately priced. Sentence4: Please provide me with attraction type preference that you may have so that I can narrow down to a few choices. Sentence5: There are 11 options which fit your requirements. What part of town do you prefer? Sentence6: Thank you very much. I think that is all the information I need today! Sentence7: Perfect I have you booked at the Avalon for 5 nights and 5 people, the reference number is I3B3EKYI . Is there anything else I can help you with? Sentence8: Preferably in the centre. Would like a reservation for 5 people, for 5 nights beginning Wednesday. Also looking for places to go in the centre as well. Sentence9: Sure, let us try the North. Sentence10: I need it in the centre and you can make a suggestion. Sentence11: I would either recommend Avalon or Limehouse. Both are great guesthouses. Which of those would you like me to book for you? Sentence12: Please give me their phone number and postcode Sentence13: Do you have a specific area or attraction type in mind? Sentence14: I would like to be in the centre, please provide me with an entrance fee, a phone number and post code. Sentence15: There are no places to stay in Centre matching your request. Would you like to try another part of town? Sentence16: Something moderately priced, but a 4 star accommodation. And I would like free wifi too please. Sentence17: I'm also looking for places to go around town Sentence18: You are welcome. Enjoy your trip. Goodbye Sentence19: Let's go with the Avalon. Could you make it for 5 people for 5 nights? We want to arrive Wednesday. Sentence20: Ruskin gallery is a museum in the centre of town and very popular. The entreance is free. Sentence21: That's great information, but so many options! Is there a part of town that you would like to stay or other amenities you would like to have while in town? Sentence22: The phone number is 01245493131 and post code is cb11pt. Question: Who has spoken the sentence 12? (A) User (B) System

Output: Answer: (A) User

Input: Consider Input: 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

Output: Answer: (A) User

Input: Consider Input: Sentence1: There are no 4 start hotels in the north with free wifi. Sentence2: Can you also help me find an indian place to eat. Sentence3: I'm sorry, I meant to ask for help finding something fun to do in town in the north side of town. I don't need a restaurant after all. Sentence4: What about a guesthouse with 4 stars in the north? Sentence5: Is there a certain area or price range you would like? Sentence6: The parking does not matter. Sentence7: I'm not ready to book it. I would just like to know the entrance fee. Sentence8: Yes, I would have to give them a quick call. How many people and what day? Sentence9: find me its entrance fee Sentence10: no thanks that will be all then Sentence11: Yes, I would recommend Avalon. It is at 62 Gilbert Road, postcode cb43pd. Sentence12: There are no 4 star hotels in the north are with free internet. Is there anything else I can help you with? Sentence13: Okay! What part of town would you like to stay in? Sentence14: I am glad that I can help. Have a nice stay. Sentence15: would you like to book something without free wifi, or in another area. Sentence16: riverboat georgina is in the north. Would this work? Sentence17: Can you tell me the phone number? Sentence18: Sure, the phone number is 01223353071. Sentence19: I'd prefer something in the North, a 4 star hotel with free wifi if possible. Sentence20: I'm sorry. The entrance fee for the Riverboat Georgina is unknown. Would you like the phone number? Sentence21: i need a place to stay Sentence22: can I get a boat? Sentence23: do you have a type in mind? Sentence24: Yes, I see several guesthouses available! They are all in the moderate price range; does parking matter to you? Question: Who has spoken the sentence 8? (A) User (B) System
Output: Answer: (A) User