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: That sounds great. Can you tell me their postcode, address, and phone number? Sentence2: You are very welcome. Have a nice day. Sentence3: Hi, I'm looking for information on a restaurant called efes. What type of food do they serve and will I need reservations? Sentence4: Whale of a Time is in the west. Does that sound good? Sentence5: Sure, it is located at unit 8, viking way, bar hill. Postcode cb238el, and phone number 01954781018. Is there anything else I can help you with? Sentence6: I want a taxi to take me from the attraction to my restaurant in time for my reservation. Tell me the car type and contact number for the taxi too. Sentence7: Yes, please. I will need a table for 4 at 18:30 on Saturday. Thank you. Sentence8: Efes serves turkish food and is located at king street city centre. I can book a reservation for you if you would like. Sentence9: That is all for today. Thank you for your time. Sentence10: Can you also help me with places to go in the west of town? I'm looking for entertainment. Sentence11: Alright, I have made your reservation. The reference number is ID46B4KQ . Sentence12: A black tesla will arrive. Reach them at 07424011188. Is that everything for today? Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System