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

Ex Input:
Sentence1: I want the postcode Sentence2: The post code for the hospital is CB20QQ. Sentence3: Okay. Enjoy the rest of your day today Sentence4: Thank you. That was all I needed. Sentence5: Okay, Addenbrooke's hospital is located at Hills Road, Cambridge. Would you like the phone number? Sentence6: I am looking for the Addenbrookes Hospital Question: Who has spoken the sentence 5? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: No that's all I needed. Thank you! Sentence2: Mumford Theatre sounds great. May I have their address and entrance fee, please? Sentence3: The bridge guest house phone number is 01223247942. Can I help you with anything else? Sentence4: Hi, I'm traveling to Cambridge and I'm excited about tourist attractions. I'm looking for theatres in the centre of town. Sentence5: Can I please get their phone number as well? That's all I'll need for the day. Sentence6: I have many. May I suggest either The Cambridge Arts Theatre or Mumford Theatre? Sentence7: Unfortunately I am unable to find information on the entrance fee but the address is anglia ruskin enterprise, east road. Their phone number is 08451962320 Sentence8: Sure. The Bridge Guest House is at 151 hills road. Did you need any other assistance? Sentence9: Alright, thank you. I'm also looking for a particular hotel. It's called the Bridge Guest House, could you help me find it? Sentence10: You are very welcome, anytime. Question: Who has spoken the sentence 6? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: Hobsons house is a guesthouse and the postcode is cb39lh. It is in the moderate price range. Would you like to book a room? Sentence2: I need a train from broxbourne Sentence3: Do you have time travel preference? Sentence4: Booking was successful for TR5979, the total fee is 143.19 GBP payable at the station. Your reference number is : CNUS8VFV . Can I help you with anything else? Sentence5: I'm looking for a hotel with free wifi. It doesn't need to have free parking. Sentence6: Yes, please book this for 8 people. I will also need the reference number. Sentence7: Certainly, the postcode for gonville hotel is cb11ly. the price range for the hotel is expensive, but I don't have the actual price. Sentence8: Okay then, you have a wonderful day! Sentence9: Thank you. That's all I need for now. Sentence10: No thank you. I just need the price and the postcode please. Sentence11: Is that a hotel. If so, could you get me the postcode and price range please. Sentence12: I need to leave on Thursday. Sentence13: My apologies about the confusion, it looks like the best option for you is the TR5979, which leaves at 10:32 and arrives at 11:32. Shall I book this for you? Sentence14: No, I'll book one when I get there. Thank you for your help! Sentence15: I'm happy to have been of service. Is there anything else I can help you with today? Sentence16: Yes, time travel would be fine. But I need to get to Cambridge by 11:45 at the latest. Sentence17: Will a guesthouse do, or are you only interested in a hotel? Sentence18: No that is all I needed. Sentence19: What day would you like to travel to Broxbourne? Sentence20: Just a hotel, and it needs a three star raiting. Sentence21: I've got the gonville hotel with a 3 star rating. Would you like me to make a booking for you? Sentence22: hobsons house looks good, it's got a 3 star rating and wifi. would you like me to book it? Question: Who has spoken the sentence 20? (A) User (B) System

Ex Output:

Answer: (A) User