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: Oh they really are lovely. And the number is 01223464646. Sentence2: That sounds lovely. What's their phone number? Sentence3: I was able to book the table for eight on Tuesday 11:00. The reference number is R8O6B9DF . The table will be reserved for 15 minutes. Sentence4: I'm looking for places to go in town. Can you search in the area of south? Sentence5: Thank you for using our service. Have a great day! Goodbye. Sentence6: We only have one listing for an Italian restaurant in the south. It's located at Cambridge Leisure Park Clifton Way Cherry Hinton. Does this interest you? Sentence7: Thank you so much. You took care of everything. Thanks. Bye. Sentence8: I was able to book a black honda contact number is 07790378961 Sentence9: Thank you. I am also looking for an expensive Italian restaurant. Sentence10: Absolutely! When would you like to arrive at or leave by? Sentence11: We have several great options. The Byard Art museum is popular and has free admission. Sentence12: I'd like to get to the restaurant by my reservation time. Sentence13: I'd like one near the museum in the south. Sentence14: Yes. I need a table for 8 at 11:00 on Tuesday. Sentence15: Thank you, can I also get a taxi between the two places? Sentence16: Sure, there are 5 expensive Italian restaurants for you to choose from. Is that a specific area you would like the restaurant to be in? Question: Who has spoken the sentence 4? (A) User (B) System
Output: 


Answer: (A) User