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: Perfect. I was curious about how many stars they had. Thanks so much for the information. Sentence2: Sorry, also, I need information on the Alexander Bed and Breakfast. Sentence3: Yes thank you! That is all I needed. Sentence4: Milton county park is in the north side area and their phone number is 01223420060. Their address is Milton county park, Milton and postcode is cb46az with free entrance fee. Sentence5: Thank you for your help. I will. Sentence6: Maybe. How many stars is the hotel rated? Sentence7: Thank you for contacting Cambridge TownInfo centre. Goodbye! Sentence8: Sure it is a guesthouse in the centre, it is priced cheap with 4 stars, it has internet and free parking. Sentence9: No I need some time to consider my choices. Thank you for your help today. That is all the information I need. Sentence10: Would you like me to book you into alexander bed and breakfast? I will need the details of your stay. Sentence11: It's rated 4 stars. Is there any other information you'd like about the Alexander Bed and Breakfast to make your decision? Sentence12: I am glad I could be of assistance. Have a good day! Sentence13: Hello, I would like information on Milton County Park. Sentence14: Okay. If you need any help with reservations, please give me a call back. Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System