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: So the Royal Standard is in the east? Sentence2: Sure, the Royal Standard is located at 290 Mill Road City, Centre, cb13nl and their phone number is 01223247877. Can I help with anything else? Sentence3: Yes it is. It not far at all Sentence4: Yes please, can I get the postal code and entrance fee? Sentence5: Where you wanting the taxi to pick you up at Cherry Hinton Hall or the Royal Standard and at what time? Sentence6: We are looking for a place to go while in town in the east. Sentence7: I have 10 places on the east side. Do you know what type of attraction you may like? Sentence8: Yes, I confirm the Royal Standard is in the east. Do you want me to book it for you? Sentence9: Yes, I would suggest royal standard. Sentence10: Is that close to the food place ? Sentence11: Ok perfect I also need a taxi to commute between the two places. Sentence12: Can you give me the address and phone number of it? Sentence13: I don't have any concerthalls. But I do have cherry hinton hall and grounds, which is of attraction type "Entertainment." Would you like to hear more about it? Sentence14: I would also like to find a place to eat. Can you find a gastropub restaurant in the expensive range? Sentence15: I would like to be picked from Cherry Hinton at 22:00 and arrive at the Royal Standard, please. Sentence16: A concerthall would be really nice. Do you have one? Sentence17: the postcode is cb18dw. unfortunately, i don't have information regarding the entrance fee. Sentence18: Your booking is completed! Your car type is yellow Toyota and contact number is: 07964380334. Can I assist with anything else? Question: Who has spoken the sentence 3? (A) User (B) System
Output: 


Answer: (B) System