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: There are 7 museums in the west. My personal favorite is Cafe Jello Gallery. Entrance is free! Would you like more information? Sentence2: What is the phone number? Do they have free parking? Sentence3: Could you find me a hotel that is in the west with the same criteria? Sentence4: I am afraid we have nothing that matches your request. Would you like to try another area? Sentence5: Yes, they do have free parking, and the phone number is 01223304906 . Is there any other information you need? Sentence6: I found 5 hotels do you have a part of town you prefer? South, north, west or centre? Sentence7: sure, phone number is 01223312112 postcode is cb30af and the address is cafe jello gallery, 13 magdalene street Sentence8: I'm afraid there are no hotels that will meet your needs. Would you like to try a different area of town or price range? Sentence9: I'll also need a taxi to get between the two places, I'd like to leave Cafe Jello by 4pm. Can I have the car type and a contact number? Sentence10: Yes, can I have the postcode, address, and phone number for Cafe Jello, please? Sentence11: Could you help me find a 3 star hotel with free wifi in Cambridge? Sentence12: Yes, are there any museums in that area? Sentence13: Yes one more thing, I am looking for an attraction in the "architecture" category and I would like it to be close to the hotel please. Sentence14: I would like a hotel in the moderate price range in the centre of town. Sentence15: Sure thing! I have you booked for a blue bmw and the contact number is 07359941913. Can I help you with anything else? Sentence16: It sounds like Hobsons House is the perfect guesthouse for you. Would you like me to book a stay? Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System