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's it for me today. Thank you, bye Sentence2: I would like more info on the Travellers Rest, it is a restaurant. Sentence3: My apologies, there is a known system issue that is not allowing booking specifically on restaurants, you would have to call them directly at 01223276182, can I help with anything else? Sentence4: A yellow toyota will pick you up at Cityroomz and get you to the restaurant for that reservation. The contact number is 07700237290. Can I help with anything else? Sentence5: I would like to stay in the centre of town. Sentence6: I also need to find a taxi. Sentence7: I need a nice place to stay, do you have those? Sentence8: I would like the moderate price range. Sentence9: Sure, I have five options for you. What price range? Sentence10: Sure. I would like to book it for 6 people on Monday at 14:30. Sentence11: We have many nice places that would suit your needs. Is there a particular area you are wanting to stay in? Sentence12: Thank you have a good day too? Sentence13: Booking was successful. Reference number is : XPE70MGX . Is there anything more I can help with today? Sentence14: Where would the taxi need to pick you up? Sentence15: I have found the cityroomz located in the centre for a moderate price. It has 0 stars and free internet. Can I make the reservation for you? Sentence16: Can they pick me up at the hotel and take me to the restaurant in time for my reservations? Sentence17: It is a british restaurant in the west. It is expensive. Can I tell you anything further about it? Sentence18: Yes please make a booking for 6 people and 2 nights starting from monday. Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System