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: I would suggest the Museum of Archaelogy and Anthropology. It is located at University of Cambridge, Downing Street and has free admission. Sentence2: I'd like to book a taxi to take me from the museum to the hotel. If possible, I'd like to leave the museum no later than 24:45. Sentence3: You are all set, the reference number is C3JA0EZJ, any further questions today? Sentence4: May I get the postcode, phone number for that attraction? Sentence5: That sounds good please book that for 3 people starting on saturday for 5 nights. Sentence6: I going to be staying in the centre part of town, what is there to do at that area? Sentence7: No, I don't have a preference. What's a good place to go to? Sentence8: Booking completed! Booked car type : grey ford Contact number : 07511988882 Sentence9: alpha-milton guest house is a moderate priced 3 start guesthouse in the north, it does not have free internet or parking. They are located at 63 milton road. Sentence10: Great. Thank you, that will be all for now. Have a great day. Sentence11: There's a lot of popular attractions in the centre of town, including boating, cinema, museums, nightclubs, and much more. Do you have a specific preference? Sentence12: Okay. Thank you very much. Sentence13: Yes, I'd like information about the Alpha Milton guest house. Sentence14: Yes, the postcode is cb23dz. The phone number is 01223333516. Can I help you with anything else? Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System