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: Yes please, for 4 people. Sentence2: I'm not sure which I'd like to visit, do you have any recommendations? Also, please let me know the entrance fee. Sentence3: There are churches, colleges, and museums. Sentence4: Have a great day. Sentence5: No. That will be all for today. Thank you. Sentence6: You can call ADC Theatre at 01223300085 to find out the entrance fee. For the train, can you tell me the day you would like to travel? Sentence7: Booking was successful, the total fee is 40.96 GBP payable at the station. Reference number is : KY3BCCE0 . Can I help you with anything else today? Sentence8: There are many trains that go to Cambridge on Sunday, where are you departing from? Sentence9: I'll be leaving from stevenage Sentence10: There is a train leaving Stevenage at 11:54 and arriving in Cambridge at 12:43 this Sunday. Would you like me to book this train? Sentence11: I would like to travel on Sunday going to cambridge. Sentence12: Is there anyway to find out the entrance fee? I will also need to book a train leaving stevenage leaving after 11:45. Sentence13: Hi, I'm planning a trip to Cambridge and I'm looking for places to visit in the centre. Sentence14: I recommend adc theatre. I am unsure of the entrance fee. Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User