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: Milton Country Park is a great place to visit! It's in the North and free to enter. Sentence2: How about TR4803 that leaves at 09:29? Sentence3: Great! Please, give me the address of the park. Sentence4: I have 5 to choose from. Is there a certain area you were wanting the park to be in? Sentence5: milton country park, milton. Sentence6: I want to leave on Sunday. Sentence7: There are 56 trains traveling from Bishops Stortford to Cambridge after 9:00 between Friday and Wednesday. What day to you want to travel? Sentence8: Of course. How many tickets do you need? Sentence9: Actually, I don't need a booking. I just need to know when it arrives, thanks. Sentence10: no specific area. just recommend one. Sentence11: Thank you. I am also looking for a park to go to. Sentence12: That will work can you book that for me please? Sentence13: Thank you so much for your time. Have a nice day! Sentence14: You too, enjoy your stay! Sentence15: I need to take a train from bishops stortford to Cambridge. Ill need to leave after 9:00 Sentence16: It arrives at 10:07. Question: Who has spoken the sentence 15? (A) User (B) System
Output: 


Answer: (B) System