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: Yes, there will need to be a booking for 7 people for this train and I will need the reference number. Also, I need info on that restaurant. Sentence2: Golden Wok is moderately priced in the north area. Would you like to book a table here? Sentence3: Your train tickets have been booked and the reference number is 5SZK6BNU . The Golden Wok phone number is 01223350688 and is located at 191 Histon Road Chesterton, CB23PP Sentence4: No, that's okay. Thanks for looking! Sentence5: No thank you, that is everything I need. I appreciate it very much. Sentence6: Thank you for letting me help you. Enjoy your dinner. Next time you need reservations we'll be here to help you. Sentence7: The departure is from Cambridge and the destination is London Kings Cross, what was the postcode, phone number and address of the Golden Wok? Sentence8: You're welcome. Are you certain you don't need further assistance? Sentence9: Moderate price range please. Sentence10: Postcode: cb43nl, Address: 191 Histon Road Chesterton, Phone: 01223350688. Can I help you with anything else? Sentence11: Thank you. for your time. Sentence12: I'm sorry, but there are no restaurants that meet your criteria. In fact, there are no basque restaurants in all of cambridge. Would you like to broaden your search? Sentence13: I'm looking for a restaurant in the north that serves basque food, please. Sentence14: TR9876 leaves at 23:00. Would you like me to book it for you? Sentence15: Now hold on just a minute. I'm still hungry. How about a Chinese restaurant instead? Sentence16: No but I am looking for a train fro Friday, leaving after 20:15. Sentence17: Yes, there are 17 Chinese restaurants. Do you have a desired price range? Sentence18: Actually, I think I also want to get the postcode, address, and phone number for the Golden Wok please. Sentence19: Thank you for contacting us. Please ask again if you need more information. Goodbye! Sentence20: OK, There are several trains leaving after 20:15. Where would you like to depart from and where is your destination? Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System