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 don't have one. how about you pick your favorite attraction and give me the entrance fee, type and phone number. Sentence2: How does the cambridge belfry sound? It's in the west part of town and you'd have access to free parking, too. Sentence3: You're right, we should an attraction first. I'm pretty open to anything as long as its located in the centre. Sentence4: Thank you! Have a great day. Sentence5: Sure, the number is 01954714600. Sentence6: I would like to find an Indian food restaurant Sentence7: I really need a hotel and not a guest house are there any in the area? Sentence8: I'd like to know of interesting places to go situated in the centre of cambridge. Sentence9: Well, I have 44 great thoughts at hand, from beautiful architecture to museums and boating. Let's narrow down your interests- what's your attraction budget? Sentence10: I really like old schools. It is in the centre and has a phone number of 01223332320 Sentence11: looking for a place to stay. The hotel should be in the type of hotel and should include free wifi. The hotel should be in the cheap price range and should have a star of 4. Sentence12: Are you sure you're interested in a restaurant? I know you mentioned earlier you're looking for an attraction. Could you give me more specifics about what attraction you're searching for? Sentence13: Thank you. I don't need anything else from you today. Bye, have a good one! Sentence14: There's a ton of options in the centre. What type of attraction are you interested in? Sentence15: Sure, can I just get their phone number? Sentence16: I would suggest the acorn guest house. Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User