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

Positive Example 1 -
Input: Sentence1:i need a place to dine in the center thats expensive Sentence2: I have several options for you; do you prefer African, Asian, or British food? Sentence3: Any sort of food would be fine, as long as it is a bit expensive. Could I get the phone number for your recommendation?Question: Who has spoken the sentence 2? (A) User (B) System
Output: Answer: (A) User

Positive Example 2 -
Input: Sentence1: Guten Tag, I am staying overnight in Cambridge and need a place to sleep. I need free parking and internet. Sentence2: I have 4 different options for you. I have two cheaper guesthouses and two expensive hotels. Do you have a preference? Sentence3: No, but I'd really like to be on the south end of the city. Do any of those fit the bill? Sentence4: Sure. Does price matter? We can narrow it down and find exactly what you need. Question: Who has spoken the sentence 4? (A) User (B) System
Output: Answer: (B) System

Negative Example 1 -
Input: Sentence1: I am looking for a hotel named alyesbray lodge guest house. Sentence2: i have their info, what would you like to know? Sentence3: I would like to book a reservation for it. Can you help me with that? Sentence4: I sure can. First, I will need to know when you want your stay to begin and how many days you'll be staying. Also, how many people will be staying? Question: Who has spoken the sentence 1? (A) User (B) System
Output: Answer: (A) User

Negative Example 2 -
Input: Sentence1: Hi there! Can you give me some info on Cityroomz?. Sentence2: Cityroomz is located at Sleeperz Hotel, Station Road in the Centre area. It is a moderatley priced hotel with a 0 star rating. Would you like to book a room? Sentence3: Yes please. I need it for 7 people for 3 nights starting on tuesday. Sentence4: How many days would you like to book it for? Question: Who has spoken the sentence 4? (A) User (B) System
Output: Answer: (A) User

Now complete the following example -
Input: Sentence1: How about The Copper Kettle? Sentence2: I need a place to eat. British, expensive in the Centre. Sentence3: considering that, i have 3 options in the expensive range if that's what you prefer. Sentence4: What other criteria? Sentence5: No that's is. Thank you for all your help. Have a great day. Sentence6: I would like the Center of town please. Sentence7: Booking was successful. The table will be reserved for 15 minutes. Reference number is : ZL5U9Q4Q . Anything else I can help with? Sentence8: I'd like a place in the west with free parking. Sentence9: What area of town would you like to stay? Sentence10: You are all set! You will be picked up in a blue tesla and their contact number is 07857104689. Is there anything else you need? Sentence11: Yes, please select one that meets my other criteria and has an expensive price range. Sentence12: Thank you! I also need to find a guesthouse to stay in please. Sentence13: Five restaurants match your criteria. Four are in Centre area and one is in the West. Which area would you prefer? Sentence14: No specific departure time, but I would like to arrive by 19:30 please. Sentence15: Moderate price range please. Sentence16: What time do you want to leave at? Sentence17: You're very welcome! Have a great day, and let us know if there's anything you need in the future. Sentence18: hobsons house's phone number is 01223304906. Is there anything further I can do for you today? Sentence19: Hobsons House sounds good. Can you give me the phone number? Sentence20: Yes, one more thing. I will need a taxi between the hotel and the restaurant, please. Sentence21: Do you have a star rating you prefer? If not, I would suggest Hobsons House with a 3 star rating. Nice place. Sentence22: There are several British restaurants available. Would you prefer a moderate or expensive price range? Sentence23: Is it in the expensive price range? If so, could you book me a table for 3 people at 19:30 for Wednesday? Sentence24: Yes, please book a table for 3 people at 19:30 on wednesday. Sentence25: Howdy, I'm looking for a British restaurant for breakfast. Sentence26: I'd recommend the fitzbillies restaurant on 51 Trumpington Street City Centre. Would you like to make a reservation? Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User