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: I am also looking for a train from Cambridge to Leicester. Sentence2: Hobsons House is a moderately priced 3-star guesthouse on the west side. Their address is 96 Barton Road, cb39lh. Their phone is 01223304906. They offer free wifi and free parking. Sentence3: I am looking for a hotel called Hobsons House. Sentence4: When would you like to begin your stay at Hobson's House? Sentence5: Perfect, I will take that trip for 30.24 pounds. Thank you! Sentence6: Booking was successful. Reference number is : ALSEXHLY . Sentence7: I would like my stay to begin on Saturday. Sentence8: I need to leave after 17:45 on Saturday. I need the price, travel time and train ID of the route is possible. Sentence9: Excellent. I would like to book a stay for 2 people for 5 nights, please. Sentence10: There is a train leaving Cambridge at 18:21 and arriving at Leicester at 20:06. The trainID is TR6034 and the trip duration is 105 minutes. A ticket is 30.24 pounds. Sentence11: What day and around what time would you prefer to depart? Sentence12: You're welcome. Enjoy your time in Cambridge! Sentence13: How many tickets will you need? Sentence14: Actually, I am not ready to book them. Thank you for your help, I am all set. Good bye. Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User