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: How does the alexander bed and breakfast sound? It's in the city centre. It has free internet and free parking. Sentence2: Okay, look for a yellow honda contact #07601477512 Anything else I can do for you? Sentence3: Thank you! Can you also help me find a cheap place to stay while I am there? Sentence4: No problem, do you want to stay in the centre as well? Sentence5: There are 5 nightclubs. Club Salsa is my favorite at 1 station road. Sentence6: You are welcome. Goodbye. Sentence7: Hello! I'm staying in Cambridge for the first time and I'm looking for places to go that are near me. Can you help me find multiple sports? Sentence8: It sounds good! Can you book for 5 people and 5 nights starting from Saturday? Sentence9: Yes, I need a taxi from the hotel to the nightclub, I want ot leave the hotel by 13:30 Sentence10: Bummer, are there any nightclubs in the city centre instead? Sentence11: I have booked it, and the reference number is 4ARUOMK7 . Anything else I can do for you? Sentence12: No, but I'd like a guesthouse of the 4 star range that offers free WiFi. Sentence13: No that's alls I needed. Sentence14: There is one multiple sports attraction in Cambridge and it is in the east area: The cherry hinton village centre. Sentence15: It's 5 pounds to enter. Their phone number is 07782218745 and the postcode is cb12jb. Can I help with anything else? Sentence16: Great can I get the phone number, postcode, and entrance fee please? Question: Who has spoken the sentence 14? (A) User (B) System
Output: 


Answer: (A) User