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: It will be going to the chinese restaurant your booked. Sentence2: A black Audi will pick you up, contact number is 07658935119, as your taxi. Is that all you need today? Sentence3: Are there any colleges in the centre of town? Sentence4: Goodbye. Enjoy your meal. Any further questions feel free to contact us again. Sentence5: Yes. Their phone number is 01223367755. Sentence6: No, thank you. I need to consult with my friends first. Can you please give me their phone number? Sentence7: Do you have preferences in the attraction type? Sentence8: Yes I have many, would you mind a entrance fee? Sentence9: Are they are in the centre of town? If so, do they have an entrance fee? Sentence10: I'm also looking for a cheap Chinese place to eat at. Sentence11: What's the postcode and entrance fee, if any, for your favorite one? Sentence12: Hi, I am looking for information on places to go in town please. Sentence13: There are three cheap chinese restaurants in the city centre. I suggest the Rice House as it's closest to the college. Would you like me to make a booking? Sentence14: okay all I need is your destination. Sentence15: Great I also need a taxi that will leave the attraction by 16:15 Sentence16: Christ's College is on Saint Andrew's Street, postcode cb23bu and has no admission fee Sentence17: The Cherry Hinton Village Centre offers multiple sports. Would you like the phone number or address? Sentence18: Yes, that's it. Thank you for all your help today. Goodbye. Sentence19: It is located in the east of town but there is no entrance fee listed. Sentence20: one that offers all indoor games Question: Who has spoken the sentence 18? (A) User (B) System
Output: 


Answer: (A) User