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

Ex Input:
Sentence1: The Cambridge Belfry is a hotel on the west side and is inexpensive. Their phone number is 01954714600. Sentence2: Can I get their postcode please? Sentence3: What can you tell me about Finches Bed and Breakfast? What area are they in? Sentence4: Yes, I'll also need a taxi to commute between the two places. I'll need to arrive at the restaurant by the dining time. Sentence5: Chiquito restaurant and bar is in the south area, what time would you like me to book your 4 people for? Sentence6: That's great. Everything is set. Thank you for helping me. Goodbye. Sentence7: i booked your taxi. it will be a blue lexus coming. their phone number is 07566783718. Sentence8: The table has been booked. Your reference number is PQPB99PP . Can I help you with anything else? Sentence9: You're welcome, have a great day! Sentence10: yes four people for Friday at 17:30 Sentence11: Postal is cb30nd, and if you need to call them they can be reached at 01223276653, any thing else that I can assist with? Sentence12: Okay, how about Mexican food in the south? I'll be needing a table for 4 this Friday. Sentence13: finches bed and breakfast Is in the west, it is cheap, 4 star guesthouse, free internet and parking. Do you need anything else? Sentence14: I would like an inexpensive hotel on the west side of town. Question: Who has spoken the sentence 1? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: I have 5 choices for you. If I might suggest the Holy Trinity Church. It has the most unique architecture in our area. They also offer free admission. Sentence2: I will be visiting the centre. Sentence3: Like I mentioned, Holy Trinity Church is totally free. Is there anything else you'll be needing today? Sentence4: Sounds great. Do you happen to know the entrance fee for it? Sentence5: OK I HAVE 1 TRAINS THAT LEAVE AROUND THAT TIMES ONE AT 21:39 WOULD THAT WORK FOR YOU ? Sentence6: I need a train that lease from London Liverpool Street on Tuesday. Sentence7: Yes as long as it leaves AFTER 20:45 that will be fine. How much is it and how long is the travel time? Sentence8: There are 10 days departing London Liverpool Street on Tuesday. Is there a certain time of day you need to travel? Sentence9: No, I don't think so! Thank you for your help! Sentence10: How about architecture type instead? Sentence11: Thank you for using Cambridge TownInfo centre. Please remember us for all of your future travel needs. Sentence12: Which area are you interested in visiting in town? Sentence13: I would like to leave after 20:45. Sentence14: the train ride is 88 minutes and the cost is 16.60 pounds. it leaves at 21:39 and your reference number is Q6UN1GVR . is there anything else i may help you with? Sentence15: There is no entertainment in the centre. Would you be interested in a different type of attraction? Sentence16: I am looking for places to go in town. What type of entertainment is there in the centre? Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: Alright, have a great day. Sentence2: Trains leave Cambridge all the time! Where would you like the train to take you on Monday? And at what time? Sentence3: It seems all of our museums are in the city centre, though my recommendation would be the Primavera. Would you like any more information? Sentence4: They are located at 01223357708, the address is at 10 king s parade, and their postcode is cb21sj Sentence5: the centre would be nice. Sentence6: No thank you. That's all I need to know. Sentence7: There are 11 museums. What part of town would you like? Sentence8: I am looking for a place to go maybe a museum. Sentence9: Thanks for the info. Can I also get information about trains leaving on Monday? Sentence10: I would like to travel to peterborough. What is the travel time from cambridge to peterborough? Sentence11: Sure, I'd like to know the phone number, address, and postcode. Sentence12: The travel time is 50 minutes. Would you like to book a train? Question: Who has spoken the sentence 10? (A) User (B) System

Ex Output:

Answer: (A) User