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: Finches has wifi and a postcode of cb30nd Sentence2: That sounds great. Thank you for your help. Sentence3: Was that everything you needed today? Sentence4: I'm looking for a museum in centre. What do you recommend? Sentence5: I am traveling to Cambridge and I'm excited about seeing the local tourist attractions. Sentence6: We have dozens of museums here, but there are a few that are not free to enter, do you want to go to a free one? Sentence7: I don't care about the entrance fee. Can you recommend a good museum and give me the postcode and phone number? Sentence8: I'm not looking for any particular price range. I need the postcode and please let me know if they have internet? Sentence9: i want to leave the hotel by 12:15, get contact number and car type Sentence10: You as well! Thank you for choosing Cambridge TownInfo centre today. Sentence11: Sure. I recommend the Museum of Archaeology and Anthropology. The phone number is 01223333516 and postcode is cb23dz. Can I help you with anything else? Sentence12: I can help with that. First would you like to book a hotel? Sentence13: Do those hotels have internet? Sentence14: Cambridge is a great place for that. There are 79 total attractions, any type of attraction or area in mind? Sentence15: Certainly. I have you booked leaving the hotel at 12:15. The vehicle is a Black Tesla and the contact number is 07302617458. Sentence16: There are 3 hotels in the west with free parking and 4 stars. What price range are you looking for? Sentence17: I need a taxi from the museum please. Sentence18: There are a few, do you know what price-range you are looking for? Sentence19: Yes, please book it Sentence20: Well first I'll need a place to stay. Are there any 4-star hotels in the west with free parking? Sentence21: Yes, they all have free wifi. Sentence22: Yes, that's all. Have a nice day. Sentence23: Please give me information on when you want to leave and arrive. Sentence24: Ok. I'd like a taxi to take me from the hotel to the museum. I'd like to leave by 12:15. Question: Who has spoken the sentence 13? (A) User (B) System
Output: 


Answer: (B) System