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: Actually, type does not matter. But I want somewhere with 4 stars and wifi in the south please Sentence2: Yes, I would like that place. Can you give me the phone number, entrance fee, and address? Sentence3: The aylesbray lodge guest house is a great place to stay. Shall i book it for you ? Sentence4: Good bye have a nice stay. Sentence5: Great, can you get me the postcode, phone number and price range? Sentence6: Yes, the postcode is cb17sr. The phone number is 01223240089 and its moderately priced. Sentence7: Are there any entertainment attractions in the centre of the city? Sentence8: There are 44. Is there a certain type you prefer? Sentence9: Yes can you find a restaurant for me to eat at? Sentence10: Preferably a hotel if possible. Sentence11: I would recommend castle galleries. Sentence12: Do you need a hotel or guesthouse ? Sentence13: What type of restaurant are you looking for? Sentence14: Thank you, goodbye! Sentence15: How about a museum? Sentence16: Yes it does have 4 stars. Enjoy your travels! Sentence17: Does the hotel have free parking? Sentence18: Castle Galleries is located at unite su43, grande arcade, saint andrews street, 01223307402 and it is free. Can I help you with anything else? Sentence19: As long as it has 4 stars, that is all I need today, thanks for your help. Sentence20: To help narrow down the results, what area or price range are you looking for? Sentence21: I don't need to find a restaurant actually. I instead need a place to stay. Sentence22: Yes, it has free parking Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System