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: You are very welcome. Goodbye. Sentence2: I am looking for an expensive restaurant in the east part of town. Sentence3: Is there anything else? Sentence4: What is the phone number for Yu Garden? Sentence5: yu garden is on the east side, would you like the phone number? Sentence6: The phone number for Yu Garden is 01223 248882. May I help you with anything else? Sentence7: No, I think that's it. Thank you for your help. Sentence8: I have found several. Would you like British, Indian, gastropub, or Chinese? Sentence9: There are no other types of expensive restaurants in the east, would you like to try another area? Sentence10: Is there another chinese restaurant in the east? Sentence11: Yu Garden is the only Chinese restaurant on the east side of town in the expensive price range. Sentence12: No, that's okay. What Chinese restaurants are there on the east side? Question: Who has spoken the sentence 11? (A) User (B) System

Output: Answer: (B) System

Input: Consider Input: Sentence1: It's cb12bd. Anything else I can get you? Sentence2: How about something in the south and moderate price range? Sentence3: I'll take Rice House, what's the postcode? Sentence4: There are 3 cheap chinese restaurants in the centre of town: Charlie Chan, Rice House, or Golden House. Would you like me to book any of these? Sentence5: Sure let's try chinese food. Sentence6: I was not able to find any restaurants matching your requirements. Sentence7: I'm still not finding anything. Would you like me to search a different part of town or a different food type? Sentence8: You're welcome. Have a great day! Sentence9: That's all. Thank you. Sentence10: I am looking for a cheap gastropub restaurant in the centre of town Question: Who has spoken the sentence 6? (A) User (B) System

Output: Answer: (A) User

Input: Consider Input: Sentence1: 51 Trumpington Street City Centre and cb21rg Sentence2: I need a place to dine in the expensive price range serving north indian food Sentence3: There are 29 hotels with those criteria. What location would you like it to be in? Sentence4: Unfortunately booking was unsuccessful is there another time you'd like to go? Sentence5: I am traveling to Cambridge and looking for a local restaurant. Sentence6: There aren't any restaurants serving expensive north indian food. Sentence7: I would like it to be in northern cambridge and have 2 stars. Sentence8: There are two hotels that meet those criteria, the Ashley Hotel and the Lovell Lodge. Sentence9: You're welcome. Have a good day. Goodbye. Sentence10: Yes, i was able to book the ashley hotel for two days. Your reference number is 6OMRC62I . Can I help with anything else? Sentence11: yes less than 100 a night Sentence12: Hi! I am looking for a place to stay that has free wifi. The hotel doesn't have to have free parking but that would be nice. Sentence13: There are many listings. Do you have an area or price range preference to further narrow down? Sentence14: Actually, I'm all set. Thanks again. Goodbye! Sentence15: Ok great, thank you! Sentence16: There are 6 restaurants listed, do you have a preference of area? Sentence17: Are there any that serve british food? Sentence18: Is there anything else you need help with? Sentence19: Can you try for 2 nights? Sentence20: Try Ashley Hotel for 6 people, 3 nights, starting Monday. Sentence21: I have 6 restaurants that serve expensive British food. Would you prefer one in the east, west or centre area? Sentence22: Centre would be fine. Could you give me the address and postcode, please? Question: Who has spoken the sentence 1? (A) User (B) System
Output: Answer: (B) System