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: That is fine. Book me a ticket and get me a reference number. Sentence2: How about a museum then? Sentence3: I have 7 museums in the west of the city, 6 are free entry and one is 3.50. Do you have a preference for a museum or a gallery? Sentence4: We don't have the ability to book tickets for the museum from here, but if you'd like to contact them, their phone number is 01223335153. Can I help with anything else? Sentence5: You're welcome. Thank you for using Cambridge TownInfo Centre. Goodbye. Sentence6: I would like to visit a cinema of the west side. Sentence7: That's all, thank you. Sentence8: I would prefer a museum. One with free entry if possible. Sentence9: I am sorry but I do not have any cinema's on the west side of town, can I check a diffrent location or help find something else for you? Sentence10: The Museum of Classical Archaeology is lovely, and they have no entrance fee. Would that fit your needs? Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User