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: Great! Can you book a room there for 5 nights? There will be 8 of us, and we'll arrive on Friday. Sentence2: Yes I have found it, it is in the west of town,and cheap. Sentence3: I will be departing from Finches Bed and Breakfast to la mimosa restaurant. Sentence4: Okay, then how about an expensive mediterranean food restaurant in the centre? Sentence5: The phone number is 01223362525 and the address is Thompsons Lane Fen Ditton. Sentence6: Give me the phone number and address for la mimosa please Sentence7: Great. That was all I needed for now. Thanks for everything. Sentence8: I want to leave the hotel by 03:15, can never be too early. Sentence9: I am sorry, there are no Austrian restaurants. Can I try a different cuisine? Sentence10: What time would you like the taxi? Sentence11: I would also like to eat some Austrian food. Sentence12: Where are you departing from and arriving at? Sentence13: You have a choice of two restaurants: la mimosa or shiraz restaurant. Sentence14: You're very welcome. Have a lovely day. Sentence15: Booking completed! Booked car type : blue audi Contact number : 07871628908 Sentence16: Finches Bed and Breakfast was recommended to me highly. Could you help me find it? Sentence17: Booking was successful. Your reference number is PZ9SHTWA . Sentence18: I am also going to need a taxi. Question: Who has spoken the sentence 4? (A) User (B) System
Output: 


Answer: (A) User