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: Are there any colleges I could check out? Sentence2: There are 4 Asian restaurants in the Centre. Do you have a price range in mind? Sentence3: Your are booked, reference number is 2DNBVG3Z, table is held for 15 minutes after booking time. Any further questions? Sentence4: I am interested in something in the centre of town. Are there any entertainment options there? Sentence5: It sounds yummy. Please book a table for Saturday at 19:30 for 7 people. Sentence6: I would prefer a cheap restaurant. Sentence7: I'm sorry, there's no entertainment in the centre. Can I look in a different area for you? Sentence8: Can you help me find some local tourist attractions? Sentence9: Great. Can I have the phone number? Sentence10: dojo noodle bar is a great cheap restaurant in the centre of town serving asian oriental food. Can i provide you more information or book it for you? Sentence11: The phone number is 01223334200. Do you need anything else? Sentence12: You're welcome! Have a great day. Sentence13: Absolutely! Is there a certain type of attraction you're interested in visiting, or are you looking for something in a certain area? Sentence14: I'm also looking for a barbeque restaurant in the same area as the college. Sentence15: What do they have to offer ? Sentence16: That is all I needed. Thank you for your help. Sentence17: how about asian oriental food Sentence18: They have free admission and are located at saint andrew's street Sentence19: I found 13. How about emmanuel college? Sentence20: I'm sorry there aren't any barbecue restaurants in the centre. Would you like to try another type of food or area? Question: Who has spoken the sentence 17? (A) User (B) System
Output: 


Answer: (B) System