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: The park is free. There are several Indian places on the Westside. Do you have a price range you're looking for? Otherwise I'd suggest Tandoori Palace. Sentence2: Nothing else. Thank you so much for your help. Goodbye. Sentence3: The reference number is RGA0Z1UO . Can I help with anything else today? Perhaps a taxi? Sentence4: The address is wandlebury ring, gog magog hills, babraham. Sentence5: I was able to book that taxi for you. Be looking for a blue Tesla. If you need to reach them, please call 07337861818. Anything else I can help with? Sentence6: Yes, I think so. Let's try that. Can you tell me their address please? Sentence7: We have several, in several different parts of town. I can recommend Wandlebury Country Park in the south. Would that suit you? Sentence8: Is there an entrance fee? I would also like a restaurant serving Indian food that is in the west. What can you recommend? Sentence9: Yes I need a taxi between the two places please. Sentence10: I need it to get me to the Tandoori Palace in time for my reservation. So 15:15? Sentence11: Sure! when would you like to leave or arrive by? Sentence12: Can I have the reference number please? Sentence13: You're welcome. Have a nice day. Sentence14: I was able to book you a table for 3 at Tandoori Palace on Saturday at 15:15. Can I help you more today? Sentence15: No, Tandoori Palace sounds good. Please book that for 3 people at 15:15 on Saturday. Sentence16: I am hoping to try some restaurants while in town but before that, I would like to go to a park. Question: Who has spoken the sentence 2? (A) User (B) System
Output: 


Answer: (A) User