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

Ex Input:
Sentence1: Would you like British food? Sentence2: Where are you going or coming from? Sentence3: I will be leaving Cambridge and heading to Ely. Sentence4: The TR8399 leaves from Cambridge on Monday at 09:50. Shall I book that for you? Sentence5: Oh that's great. That would be all, thank you. Sentence6: Sure, that works for me. I need the phone number, postcode, and address for the restaurant. Sentence7: Is there a certain time you need to arrive by? Sentence8: I am looking for a restaurant. The restaurant should be in the centre and should be in the moderate price range. Sentence9: You have 2 seats reserved, and you'll pay 8.8 GBP at the station. Your reference number is 90RLYZKX . Can I help you with anything else? Sentence10: I don't have a food preference. Sentence11: yes, for 2 people. Please give me the reference number. Sentence12: I just need to leave after 08:45 Sentence13: Cotto is a great british restaurant located on 183 East Road City Centre. Their postcode is cb11bg and phone number is 01223302010. Is there anything else you need? Sentence14: Please find me a train that leaves on Monday after 08:45 Sentence15: There are 21 restaurants in the centre. Do you have a certain type of food you'd prefer? Sentence16: Thank you for using our service today. Question: Who has spoken the sentence 13? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: The area doesn't matter. I would like free wifi though, if possible. Sentence2: Not really, how about 4 star? Sentence3: Do they also have free parking? Sentence4: I have many options. Do you have a preference for the area you would like to stay in. Sentence5: There are several moderate 4-star places to stay throughout town, but they are all guesthouses. Would a guesthouse work for you? Sentence6: acorn guest house does have free parking,would you like that one? Sentence7: Dojo Noodle Bar is a nice cn I book you a table ? Sentence8: I'm looking for a moderately priced, 1-star place to stay. Sentence9: No, I don't need a hotel booking at this time. I'd like to find a place to dine on Sunday. Sentence10: Unfortunately we do not have any moderately priced 1 star hotels in Cambridge. I'm sorry! Cityroomz has 0 stars in the centre, does that work? Sentence11: Would you like me to reserve the acorn guest house for you? Sentence12: Yes. I also need to find a place to dine that is in the center and the same price range as the hotel. Question: Who has spoken the sentence 9? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: I need a place to stay in the north that includes free parking. What options are available? Sentence2: Yes, that is perfect thank you. Sentence3: Okay, have a great day! Sentence4: Okay great, farewell! Sentence5: I can help you with that. Acorn Guesthouse is a moderately priced offering with 4-stars. Is this something you would be interested in? Sentence6: No. That is all for now. Sentence7: Thank you, have a great day, as well. Sentence8: No thanks, just gathering information for now. Sentence9: Would you like me to book a room for you? Sentence10: Here is the acorn guest house phone number in case you would like to contact them. Their number is 01223353888. Is there anything else I may assist you with? Question: Who has spoken the sentence 9? (A) User (B) System

Ex Output:

Answer: (B) System