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

Ex Input:
Sentence1: Reference number is 29IN9CT3 for the acorn guesthouse. Sentence2: Sounds great if it is portuguese. I'll take a reservation for 7 people at 20:00 for the same day. Sentence3: Okay, how about the Acorn Guest House in the north? Sentence4: There is. How does Nandos City Centre sound? Sentence5: Okay, it was my pleasure to assist you! Bye! Sentence6: No, that's all I needed today. Thank you for your help! Goodbye! Sentence7: do you have one the is portuguese food ? Sentence8: I'm looking for information on 4-star rated guesthouses in Cambridge Sentence9: You're all set. Your reference number is 6R5W1RRE and your table will be reserved for 15 minutes. Anything else? Sentence10: I suggest the dojo noodle bar, an asian oriental restaurant, would you like to make a reservation? Sentence11: Sure. Can we spend 5 nights starting on Sunday? I am going to need room for 7 people. Sentence12: I have a number of 4 star guesthouses available, would you like to book one in a particular area? Sentence13: I would also like to eat somewhere cheap in the middle of town. Sentence14: Not really. Could you suggest one with free parking? Question: Who has spoken the sentence 7? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Thank you! That is all I need. Sentence2: You are very welcome! Sentence3: Yes, I'm calling regarding Addenbrookes Hospital. What is the address please? Sentence4: The Addenbrookes Hospital is located at Hills Rd, Cambridge Postcode CB20QQ. Question: Who has spoken the sentence 1? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Sure! Can I get the postcode and phone number? I also need a train from peterborough that arrives by 9:45. Sentence2: Hmm, how about a nightclub? Sentence3: Monday, thanks. Sentence4: I want to find a place to visit in the centre in Cambridge please. Sentence5: May I please ask what the price and travel time of TR2118 is, please? Sentence6: I am going to Cambridge. Sentence7: I have several trains. The latest one is the TR2118 that arrives at 9:38. Would you like to book a ticket on that? Sentence8: I'm sorry, but I don't have anything like in town center. Cherry Hinton Village Centre is a multiple sports attraction in the east. Does that work for you? Sentence9: Ballare is available Sentence10: The price is 16.50 pounds. May I help with anything else? Sentence11: And the price? Sentence12: There are dozens of attractions in the centre of town. What type do you prefer? Sentence13: Yes TR2118 leaves at 08:48 and arrives at 09:38, it is a 50 minute ride. Sentence14: What day would you like to travel? Sentence15: Ballare is located in postcode cb23na and the phone number is 01223364222. And where would the train from Petersborough be arriving? Sentence16: I am looking for something like mutliple sports. Sentence17: Enjoy your visit and have a great day. Thank you. Sentence18: No thank you, you've been very helpful. Question: Who has spoken the sentence 7? (A) User (B) System

Ex Output:

Answer: (B) System