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: I have 23 great museums. Is there a certain area you would like to be in? Sentence2: It does not really matter can you suggest one? Sentence3: Tuesday. I want a place to stay that is expensive, 3 star, and has free parking and wifi. Sentence4: The address for the Cambridge and county folk museum is 01223355159. The postcode is cb30aq. Sentence5: Have a good night. Sentence6: Thanks, I just searched online for it, looks great, please book me for 8 people, 3 nights starting Tuesday. Sentence7: Booking was successful.Reference number is : PE5Q6EI9 . Sentence8: Okay, I'll check it out. Please get me the postcode and address Sentence9: No thank you what about a museum? Sentence10: There are lots of fun places in town. What would you like to do today? Sentence11: i'm also looking for somewhere to stay Sentence12: No area does not matter can you recommend one please? Sentence13: One of my personal favorites would be the Cambridge and County Folk Museum. It is definitely worth the entrance fee of 3.50 pounds. Sentence14: how about the funky fun house? Sentence15: That's all I needed. Thanks. Bye. Sentence16: OKay, we have the gonville hotel in the centre and the lensfield hotel in the south. Sentence17: I am looking for some entertainment. Sentence18: Sure, I need to get some information from you. Would you like a guesthouse or a hotel? What day will you be coming? Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System