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: Sure, can you book it for 6 people on friday at 17:15 please? And then give me the reference number Sentence2: I'm glad I could help, have a great time. Sentence3: How does the Golden wok sound? It is close to that area. Sentence4: I would also like to eat some Chinese food near the hotel. Sentence5: That is all for now. Thank you for all your help. Sentence6: I have you booked at the Acorn Guesthouse, six people for four nights. Your confirmation is GLVBZVYO Sentence7: Yes, please! I'd like a room for 6 people. We'll arrive on Friday and stay for 4 nights. Sentence8: Successfully booked. Your reference number is XZZTYRWB . What else would you like help with? Sentence9: Best wishes for an enjoyable stay from the Cambridge TownInfo Centre. Goodbye. Sentence10: Thanks so much, goodbye! Sentence11: Alexander bed and breakfast looks good, would you like to try that? Sentence12: I need it to be in the north area, is Alexander bed and breakfast located there? Sentence13: Hello I am new to Cambridge and was wondering about good 4 star hotels with free wifi. Any suggestions? Sentence14: No, but the Acorn Guest House is in the north. Would you like a room there? Question: Who has spoken the sentence 2? (A) User (B) System
Output: 


Answer: (A) User