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: It sounds expensive. Can I have the phone number and area please? Sentence2: That sounds great. May I have the phone number and postcode, please? Sentence3: Ok. All five hotels have both free parking and wifi. How does the university arms hotel sound? Sentence4: Phone number is 01223474144, and postcode is cb12lf Sentence5: It is in the centre are and the phone number is 0122351241. May I help you with anything else today? Sentence6: That should be easy, I just need a time and which place you will be leaving from. Sentence7: How about The Man on the Moon? It's a concerthall. Sentence8: I have 5 hotels in Cambridge that match your request. Is there a particular area of town you are interested in? East? Centre? west? south? Sentence9: I also want to go to an attraction in the center part of town. Sentence10: I'm glad I could be of help. Sentence11: I have booked you a white Lexus that will arrive by 24:30. The contact number for your driver is 07122328188. Anything else for you today? Sentence12: Thank you. I am looking to get a taxi to commute between the two places. Sentence13: That's all for me, thank you for your help. Sentence14: I am looking for a hotel that is in the expensive price range. Sentence15: I want to leave Man on the Moon at 24:30 and go to the University Arms Hotel. Sentence16: Any area should be fine. The hotel should include free parking and should include free wifi. Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System