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: That sounds interesting. Can you give me their phone number and postcode? Also, is there a train leaving at 11:45 on Wednesday? Sentence2: The train leaves on the :01 every hour starting at 10:01 with the final train leaving at 23:01 Sentence3: I need to go from cambride to birmingham new street. Sentence4: Can you look again for 1 person? Sentence5: no, that will be all. thank you. Sentence6: I'm looking an expensive restaurant in the center. Sentence7: I need to leave at 11:45 Sentence8: Okay, then I guess book it for 11:01 please. And I need a reference number please. Sentence9: If you're for something a little exotic, I recommend Bedouin, which is an expensive restaurant in the center of town serving African food. Sentence10: Just give me one. Sentence11: Booking was successful, the total fee is 75.09 GBP which is payable at the station. The Reference number is : VXSYVE96 . Sentence12: Wonderful! Thank you for your help. Sentence13: Sorry, nothing before 12:01 Sentence14: Is there anything else I can help you with today? Sentence15: There are 33 different restaurants to chose from in your criteria. What type of food do you want? Sentence16: How many tickets do you need? Sentence17: Unfortunately, I don't see anything for earlier. Sentence18: Bedouin's phone number is 01223367660 and their post code is cb12bd. There are 256 train departures on Wednesday - where do you need to go? Sentence19: There are 12 departures. What time do you need to depart or arrive? Sentence20: Anything you can recommend would be fine. Sentence21: What times are the 12 departures? Sentence22: Alright. Have a good day! Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System