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 11 guesthouses in the north. Do you have a price range or number of stars in mind? Sentence2: There are 23 museums in Cambridge. Any particular one or area you are looking for? Sentence3: Great. Could I get the postcode, phone number, and address please? Sentence4: I have two available guesthouses. They are both moderately priced. The Alpha-Milton and the Hamilton Lodge. Would you like more info on one of those? Sentence5: Is the Broughton House Gallery a museum? I am also looking for a place to stay. Preferably in the north. Sentence6: The Hamilton Lodge has free parking and internet as well. I can try to book it once I know the day, length of stay, and how many people. Sentence7: I do not need to have free parking or wifi. Please check to see if there is a guesthouse available instead of a hotel for our stay. Sentence8: I would like it to be at least $100 a night and 3 stars. Sentence9: Yes it is a museum. There are many hotels that match your criteria. Do you need free wifi or parking? Sentence10: You're welcome. Enjoy your time in Cambridge! Sentence11: The postcode is cb41da and the phone is 01223365664. Hamilton Lodge is located at 156 Chesterton Road. Anything else I can help you with? Sentence12: I can recommend Broughton House Gallery. It is free and in the centre of town. Sentence13: I'm looking for a museum in town Sentence14: Does one of those offer free parking? I would like it to have that where I stay. Sentence15: No, I think that is All. Thank you. Sentence16: I'd like to visit one with a low or free entrance fee. I also need to know in what area the museum is located. Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System