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: I am also looking for something to do in town. Are there any facilities for multiple sports on the west side? Sentence2: I recommend Kettle's Yard on Castle Street. It is actually free! Sentence3: Can you please recommend a museum and give me their address? Sentence4: Glad I could be of assistance. Please let me know if I can be of any further assistance. Sentence5: I'm looking for a train that leaves on Thursday to go to Cambridge. Sentence6: Do you have a time that you want to arrive by? Sentence7: Where are you departing from? Sentence8: I am departing from Peterborough and leaving after 14:15. Sentence9: Thank you very much, I appreciate your help. Good Bye. Sentence10: no. book for 2 people and give me the reference number. Sentence11: I'm sorry, there are no multiple sports attractions on the west side of the city. Is there a different type of attraction or a different area you'd like to try? Sentence12: TR0904 has been booked for 2 people on thursday at 14:48, cost is 33 GBP and reference number is U120DUFH . Is there anything else I can help you with today? Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System