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 hotel is in the cheap price range and does come with parking. Would you like a reservation? Sentence2: Sure. Postcode is cb11ln. Is there anything else I can help with? Sentence3: Can you help me book a taxi between the Broughton House Gallery and the hotel? I want to leave the Gallery by 20:15 Sentence4: could I have the phone number please Sentence5: That's all I need. Thank you! Goodbye! Sentence6: Sure, its in the north, is rated 4 stars and is located at 152 chesterton road. Is there anything else? Do you want me to book it? Sentence7: I am also looking for a Hotel named Worth House. Sentence8: Hello. I'm looking for a museum to visit while I am in Cambridge. Sentence9: Does that hotel have free parking? What price range is it in? Sentence10: I'd recommend the broughton house gallery on 98 king street. Their phone number is 01223314960. Sentence11: I would like someplace in the center of town, please. Sentence12: Thank you for contacting Cambridge TownInfo centre. Goodbye! Sentence13: Sure, it is 01223316074. Anything else you need? Sentence14: Please give me their postcode too. Sentence15: I have booked a taxi for you, it is a white lexus and you can contact them with the number 07850136314. Did you need anything else? Sentence16: there are several museums in Cambridge, which area would you like? there is broughton house gallery, cambridge artworks and several others. any preference? Question: Who has spoken the sentence 2? (A) User (B) System
Output: 


Answer: (A) User