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: For the taxi, please specify a place of departure, a destination, and a time by which to leave or arrive Sentence2: I will be need a taxi also to get from Corpus Christi College to the restaurant. Sentence3: Your taxi is booked. Your car type is a grey tesla and the contact number is 07621703476 Sentence4: Thanks, I'm good to go now. I appreciate your help, bye! Sentence5: Can I please get the reference number and then can you help me find some places to go near the restaurant? Sentence6: stazione restaurant and coffee bar, don pasquale pizzeria, clowns cafe, cafe uno Sentence7: Yes I need a table for 8 Sunday at 16:45. Sentence8: Im sorry for being so loop, how about a college in that area, whatever you recommend. Sentence9: No problem! I found four restaurants for you to chose from. Would you like for me to make a reservation at one of them? Sentence10: Just one more thing. What is the entrance fee for the college? Sentence11: I am looking for a restaurant serving seafood, in the center of the town. Sentence12: I would like to book a reservation for 8 on Sunday at 16:45 at Stazione Restaurant and coffee bar. Sentence13: There are 13 colleges in the centre, but I personally recommend corpus christi. Can I do anything else for you? Sentence14: Apologies, the reference number is : AY05TZJQ . I have 44 places that I can recommend near the restaurant. Do you have any type of preferences? Sentence15: No, I want expensive Italian food instead. Sentence16: The entrance fee for Corpus Christi College is 2 pounds. Sentence17: This has been booked. Anything else I could help you with ? Sentence18: Please give me the names of the 4 choices and I'll make my selection. Needs to be an expensive Italian restaurant in the Centre. Thanks! Sentence19: ok, first let's verify which restaurant you would like out of the four. Sentence20: I also need to book a taxi. Sentence21: Have a wonderful trip. Sentence22: Loch Fyne offers seafood in the city centre. Would you like me to book you a table? Sentence23: Your taxi is booked. Your car type is a grey tesla and the contact number is 07621703476 Sentence24: I would be leaving the restaurant. Question: Who has spoken the sentence 23? (A) User (B) System
Output: 


Answer: (B) System