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: You are all set, the reference number is H96PW3HV, can I help with anything else? Sentence2: sure! how many people in your party? Sentence3: Sure I can if you tell me where you'll be leaving from and either what time you want to leave or arrive by Sentence4: There are 5 colleges available in the Centre and the West. Do you have any preferences on the college? Sentence5: I woule like to leave the hotel at 7:00. Sentence6: Thanks. May I also have the phone number, please. Sentence7: 5 people and we'll be staying there for 3 nights starting Sunday Sentence8: I will be leaving the hotel, please. Sentence9: I need a taxi to the hotel, please. Sentence10: Can you book a cab for me and get a reference number ? Sentence11: i'm also looking for places to go in town Sentence12: What is the name of the hotel you'd like to book? Sentence13: I need a hotel, parking doesn't matter to me though. Sentence14: The entrance fee is not listed in our database. Perhaps it varies depending on what night of the week you go. You are welcome to call them and ask. Sentence15: I would like the info to the funk fun house please? Sentence16: Visitors find queens' college fascinating. There is an entrance fee of 2.50 pounds. The address is silver street, postcode cb39et. Sentence17: The Funky Fun House is an entertainment venue in the east. They are located at 8 Mercers Row, Industrical Estate. Their phone number is 01223304705. Sentence18: Sure the number is 01223335511. Can I help with anything else? Sentence19: You already gave me the phone number thanks, I'm supposed to get the entrance fee though, my boss insists on it. Sentence20: I am looking for something in the West. Sentence21: Can you book Hamilton Lodge for me please? Sentence22: do they charge entrance fee? Sentence23: There are many great guesthouses with free internet, do you have a have a price range or area you want to stay in? Sentence24: I'm sorry but the entrance fee is unknown. Would you like the phone number? Sentence25: I'm sorry are you going to the hotel or leaving from the hotel? Sentence26: There are 79 places to go what area would you like? Sentence27: I am looking for a college type of attraction. Is there any? Sentence28: I'm open to the price and area, but it should have a 3 star rating. Sentence29: There are 3 in the moderate price range. Bridge Guest House, Hamilton Lodge and Hobsons House. Sentence30: i don't have a name in mind but the hotel should be in the type of guesthouse and should include free wifi. Question: Who has spoken the sentence 13? (A) User (B) System
Output: 


Answer: (B) System