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: Booking was successful. Reference number: MCITLHI8 . Sentence2: Okay, where do you want the taxi to pick you up and where will you be going? Sentence3: Sure. Their phone number is 01223314960. Sentence4: i am looking for a hotel in Cambridge called the cambridge belfry Sentence5: how about broughton house gallery? it's free of charge. Sentence6: I need the taxi to pick me up at the hotel by 17:45. Sentence7: That sounds great. Can you please give me the phone number? Sentence8: How about a museum? Sentence9: Great! That's it! Thank you! Sentence10: Yes,could you please book me a room on tuesday for 5 people and for 4 nights. Sentence11: That hotel is in the West and listed as cheap, but still has 4-stars. They provide free parking and internet. Would you like to make a reservation? Sentence12: Great! I also need information on multiple sports in the centre. Sentence13: I was able to book that taxi for you. Be looking out for a White Volkswagen. If you need to reach them, please call 07698582191. Anything else for today? Sentence14: I would also like a taxi to commute and I would like it 17:45 please and the contact number and the car type, thank you Sentence15: There are no multiple sports attractions in the centre. Should we try another area? Sentence16: Thank you and have a good day! Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User