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 just need to ensure the taxi gets me from the museum to the restaurant by my reservation time. Can you swing that? Sentence2: What type of place would you like to go to? Sentence3: I have about 11 different museums in the centre of town. Do you have any certain type of museum in mind. I have art museums, one with antiques, etc. Sentence4: I want to go to a museum. Sentence5: Whichever one you think, and please provide etrance fee as well. Sentence6: I got you a red tesla taxi. The contact number is 07456538406. Sentence7: Yes, could we try for 13:45. That would work for me. Sentence8: Where would you like to leave from and what time? Sentence9: Oh dear. I was unable to make that reservation. Could we try another time? Sentence10: Okay, that's all I needed. Thank you. Sentence11: There are 9 Italian restaurants in town, did you have a price range in mind? Sentence12: Sure, book it for 3 people at 14:45 on Monday. Sentence13: I am planning my trip to Cambridge and looking for a restaurant in the centre that serves italian food. Can you help me? Sentence14: Enjoy your trip and please call back if you need anything else. Sentence15: Yes, I'd like to find a place to go in the same area as the restaurant. Sentence16: I would like a moderately-priced restaurant. Sentence17: They are all free. There is williams art and antiques, I like that one. Sentence18: I found Pizza Express on Regent Street, would you like me to book it for you? Sentence19: I've booked it for 13:45 and your reference number is XEO5JPU2 . Can I help you any further? Sentence20: Great can I also get a taxi to take me between the two places? Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User