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: Yes to both. Sentence2: Glad to help. Goodbye! Sentence3: Thanks. I'm also interested in going to the Chiquito restaurant bar. Can you make a reservation there? Sentence4: Sure what time and how many people? Sentence5: I was able to book that hotel for you for 2 nights. The reference number is 8LCNFKVO . Sentence6: I will need a time before I can book. Sentence7: There are 2 guesthouses and 3 hotels in the city centre, do you prefer one or the other, or are there any amenities that you'd like? Sentence8: Sure, how about two nights? Sentence9: No, I am all set. Good bye. Sentence10: Yes, I would like it to have free wifi. Sentence11: Do they offer free wifi or free parking? Sentence12: Could you also get me a taxi that arrives at the restaurant by the booked time? Sentence13: Unfortunately that didn't work. Do you want to shorten your trip? Sentence14: For 5 people on Wednesday please. Could you also provide the reference number. Sentence15: Thank you for all of your help. Sentence16: Is there anything else I can help you with? Sentence17: Great. Please book it for 5 people for 5 nights starting from wednesday. Sentence18: I've booked it for you, your reference number is S7P7SXVN . Sentence19: A red ford car will arrive at 10:30 to pick you up at your hotel to take you to the restaurant. The contact number is 07751377592. Sentence20: Hi, I'm looking for a place to stay in the centre. Sentence21: The Alexander Bed and Breakfast is a 4 star guesthouse that is cheap. Does that interest you? Sentence22: It will be for 11:00 on the same day Question: Who has spoken the sentence 16? (A) User (B) System
Output: 


Answer: (A) User