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: That has been booked. Be expecting a white Toyota. Should you need to reach them, please call 07017250356. Sentence2: I suggest the guesthouse, Allenbell. Their address is 517a Coldham Lane cb13js. Would you like me to make a reservation? Sentence3: Sounds great. Can you book a taxi to the church for me? I want to leave the hotel by 5:45. Sentence4: I need the room starting on friday, please. Sentence5: How about all saints church located on jesus lane? There is no entrance fee, and the postcode is cb58bs. Sentence6: Awesome. Thank you. Can you please find an architectural attraction for me in the centre of town? Sentence7: Yes, I need a reservation for 2 people for 4 nights please. Sentence8: Sure I have many. Should i suggest one for you? Sentence9: There are 21 guesthouses offering free parking. Do you have a price range? Sentence10: No, just have to be in the east. Sentence11: i am looking for a place to stay. The hotel should be in the type of guesthouse and should include free parking. Sentence12: I'll be happy to do that for you, what day will you plan on arriving for your stay? Sentence13: You have a great day. Sentence14: Yes. Please make a suggestion. Sentence15: I was able to book you. Your references number is HIASSAH9 . Sentence16: That would be it and thanks a lot Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System