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: Ok, could you also give me the phone number and postcode for that? Sentence2: Yes that sounds lovely. Do any of those listed charge an entrance fee? Sentence3: Yes please make a booking for 7 people Sentence4: Great Saint Mary's Church charges a fee of 2 pounds, but it is the only church with a fee listed. Sentence5: I'm also looking for a train that leaves from Cambridge after 20:15 on Sunday going to Peterborough. Sentence6: I'm looking for an attraction in the center of town. Sentence7: The phone number is 01223350914 and postcode is cb23pq Sentence8: TR6958 leaves cambridge at 20:34. Would you like to book this train? Sentence9: Great thank you that should be all Sentence10: There are many churches in the center of town. Would any of those interest you? Sentence11: Fine. Your fee is 92.4 GBP payable at the station and your reference number is T6LUYKFN . Sentence12: You're welcome! Have a great day! Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System