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 the pool is located i the north and their phone number is 01223353248 and their address is Jedburgh Court, Kings Hedges. Sentence2: You are welcome. Have a great day. Goodbye Sentence3: Great I'm also looking for an attraction called kings hedges learner pool. Sentence4: Is there an entrance fee? Sentence5: I do not have that information, unfortunately. Is there anything else that I can help you with? Sentence6: Hey there, I'm looking for a train to Cambridge on Saturday Sentence7: No, I think you've covered everything. Thank you so much for all your information. Sentence8: Okay I have a train that departs at 21:29. Shall I book it for you? Sentence9: I will be leaving after 20:45. Sentence10: There are 35 trains that match your request. To better help you, I'll need to know where you'll be departing from and what time you want to arrive by. Sentence11: book for 5 people and get me reference number Sentence12: Okay, great. Your booking was successful! Your reference number is ML7ZBHM1 . Your total fee is 40.4 GBP which can be paid at the station. Sentence13: sure, what are your travel times? Sentence14: Oh sillly me! I'm leaving from Bishops Stortford. Doesn't matter what time I arrive, just can't leave until 20:45 Question: Who has spoken the sentence 13? (A) User (B) System
Output: 


Answer: (B) System