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 was able to book a taxi for you. Be looking for a yellow Skoda. If you need to reach them, please call them at 07550666183. Is there anything else? Sentence2: There are a range of attractions in the south, including parks, nightclubs, a museum, a theatre, a cinema, and more general entertainment venues. What sort of attraction are you interested in? Sentence3: Sure, I need a table for 8 at 17:15 on Wednesday, please. Sentence4: That sounds very nice. Can you book me a taxi or car service between those two places? I'd like to arrive by my reservation time, please. Sentence5: I would like Chinese or Mexican restaurants Sentence6: Yes, the byard museum is reachable at 01223464646, they have free admission and are located at 14 king's parade, any other questions? Sentence7: I need a place to eat in the south that's expensive. Sentence8: A museum sounds great. Can you get the phone number for one? Sentence9: Thank you, what places can you go to that are in the same area? Sentence10: Thank you for using our service. Have a good day. Goodbye. Sentence11: There are Chinese, Indian, Italian, and Mexican restaurants that fit that criteria. Do you have a preference? Sentence12: How about chiquito restaurant bar? It's an expensive and delicious restaurant in the south. Sentence13: That would be all, thanks! Sentence14: Okay, I was able to reserve that table for you. Your reference number is XAL5QLX9 . Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System