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: If you are sure you do not need anything? Sentence2: No, thank you. That was all I needed. Thanks. Bye. Sentence3: Yes, a table for 6, please. Sentence4: little seoul is found in the center of town and is in the expensive price range. could you like a reservation? Sentence5: I would also like to find a korean restaurant Sentence6: Hello, are you still there? You said that you would reserve it but never did anything, it has been 55 minutes. Sentence7: That's alright. I need my table to be booked on Sunday. Sentence8: Booking was successful. The car will be a white Toyota and the contact number is 07225283033. Is there anything else I can help you with? Sentence9: We would like 18:45 on sunday for 6 people. I'll need a taxi to go between the two places by the booked time. Please provide contact number and car type. Sentence10: Booking was successful. The table will be reserved for 15 minutes. Reference number is : U9WFNBHE . Which direction will you need the taxi for? Sentence11: Oh, I'm sorry about that. Please excuse me. What day would you like for the reservation to be made? Sentence12: No, actually it doesn't matter. Can you suggest one and provide me the postcode? Sentence13: I'll need to go between the swimming pool and the restaurant. Sentence14: I will reserve that for you now. Sentence15: I'm looking for a swimming pool in town. Sentence16: Yes, the Jesus green outdoor pool get the most consistently positive feedback, their postal code is cb43px, can I help with anything else? Sentence17: There are four swimming pools in Cambridge. Did you want one in a particular part of town? Sentence18: I need more information on the time for the booking. Question: Who has spoken the sentence 15? (A) User (B) System
Output: 


Answer: (B) System