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

Example Input: Sentence1: I see there is a train on Friday that leaves leicester at 14:09 to Cambridge, could you book me a ticket for this train? Sentence2: I have 9 restaurants in that area. May I ask what your budget for lunch is? Sentence3: I have a 12:09 that arrives at 13:54. Would that do for you? Sentence4: The duration of the trip is 105 minutes. Have a great day! Sentence5: Yes, the gandhi is in the cheap price range. Their address is 72 Regent Street City Centre. Would you like me to book a table for you? Sentence6: Hi there, I'm trying to find a train that leaves from Leicester but it must be after 11:15. Can you help me book a ticket? Sentence7: I just need the train ID please. Sentence8: There are three cheap resturants int hat area, kohinoor, the gandhi, and mahal of cambridge. Sentence9: I think that is all for now. Sentence10: Did you only need one ticket? Sentence11: The train ID is TR6247, would you like to book a seat? Sentence12: The train ID is TR8882. Can I help you with anything else? Sentence13: No thank you, their information is enough at this time. Do they have a phone number? Sentence14: The Ghandi sounds nice. Can I get their address? And they are a cheap restaurant, right? Sentence15: Please book me a ticket for that train. Sentence16: Yes, their phone number is 01223353942. Is there anything else I can help you with today? Sentence17: Yes, that would be fine. Could I get the train ID? Sentence18: I need a train from leicester on thursday and should leave after 11:15. Sentence19: No thank you. That's not necessary. Can you help me find an indian restaurant in the centre of town? Sentence20: Nothing expensive please. Question: Who has spoken the sentence 2? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Are there any with a 5 star rating? Sentence2: I'm looking for a place to stay with free wifi. Can you help me find something moderately priced? Sentence3: You are booked at the acorn guest house. Reference number is ROCCFCM6 . Sentence4: Thank you so much, that is all I need. Sentence5: Unfortunately, none of them have a 5 star rating. Sentence6: Are there any with a 4 star rating? Sentence7: We have plenty of moderately priced options with free WiFi. Do you have any additional preferences? Sentence8: Oh yes, several. Are there any addition preferences on those? Sentence9: Great, enjoy your stay. Bye. Sentence10: Nope, any 4-star moderate place with wifi will be fine. Could you book a room starting Saturday for 3 nights, 5 people? Question: Who has spoken the sentence 6? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: There are many things to visit including museums, theaters, colleges, nightclubs, parks, swimming pools, cinema, boating, concert halls, and architecture attractions. Sentence2: I hope you have a good trip. Goodbye Sentence3: Yes please, I'll need a taxi from the pool to the hotel. I'd like to leave the pool by 05:15. Sentence4: What kind of car is the taxi? Sentence5: Are there any fun places to go in the centre of town? Sentence6: Ok, thanks for that. What's the reference number? Sentence7: What's their phone number, and how much does it cost to get in? Sentence8: Thanks! That's all I need. Sentence9: Recommend a swimming pool for me please. Sentence10: What about acorn house? It is a lovely guesthouse. Sentence11: The Ashley Hotel sounds great. Can you reserve a room on Thursday for 8 people, 3 nights please? Sentence12: I would rather have a hotel. I need it for 8 people for 3 nights. Is there anything available? Sentence13: 01223446100. I don't have access to their entrance fee. Is there anything else you need help with? Sentence14: No but it needs to be in the moderate price range. Sentence15: I will reserve it for you. Sentence16: It's a grey BMW. Sentence17: I have parkside pools in the centre of town on gonville place postbcode cb11ly. Sentence18: I have two hotels on the north side that fit your criteria. I would suggest Ashley Hotel. Would you like me to make reservations for you? Sentence19: Yes. I need a place to stay. Free parking and free wifi are important to me Sentence20: Your reference number is 739P7NDS . Do you need help with anything else? Sentence21: Great, I have several options for you. Do you want a hotel in a particular part of town? Sentence22: I have booked a taxi from Parkside pools to ashley hotel at 5:15. The contact number 0735652974. Do you need anything else? Question: Who has spoken the sentence 1? (A) User (B) System
Example Output:
Answer: (B) System