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 Cambridge Artworks museum is located at 5 greens road. Their phone number is 01223902168, and it's free to get in. Can I help with anything else today? Sentence2: Yes please, book it for two people and provide me with the reference number if you don't mind. Sentence3: Doesn't matter. Can I get the entrance fee, address, and phone number please? Sentence4: I need a train that departs from Cambridge after 15:30. Sentence5: Nothing else, thank you lots. Sentence6: Train TR4975 leaves at 05:01 Saturday. Who you like me to book it or shall I list more train options? Sentence7: I also want to find a place to go. I'm looking for a museum in the east. Sentence8: I found that TR3245 is likely suited for your needs. It departs at 16:01 on saturday evening. May I book that for you? Sentence9: We have four to choose from. Any particular preference? Sentence10: Ok, I have booked travel for two people on TR 3245 leaving Cambridge at 1601. Reference number XI0220XD for your records. Sentence11: Can you help me find a train? I am looking for to take me to Birmingham New Street and it should leave on Saturday. Sentence12: You are welcome. If you need anything else, please contact us. Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User