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'm looking for places to go in town. Maybe a swimming pool? Sentence2: I can help with that. There are 4 swimming pools available; they're in east, north, and centre. Would you like more information? Sentence3: I am unsure of the entrance fee, you will have to call the venue's for prices, would you like the phone numbers? Sentence4: There are two Asian places, would you liked me to book one of them? Sentence5: Thank you for using our service, and enjoy your time in Cambridge! Sentence6: Yes, I would like the phone numbers. I am also looking for a cheap asian restaurant. Sentence7: What are their prices? Sentence8: Yes I have two options: Nusha and Tenpin. Interested in either? Sentence9: I booked a Yellow Skoda, contact number 07937936752. It will pick you up from J Restaurant and bring you to Tenpin. Will that be all today? Sentence10: Sorry, I'm a little confused. Are you looking for information on the attraction Tenpin, or one of the restaurants? Sentence11: The restaurant please. Sentence12: It doesn't matter. Sentence13: Well instead, how about some kind of entertainment in the southern part of the city. Sentence14: The phone numbers are 01223902158 for nusha and 08715501010 for tepin. What area would are you looking for the restaurant in? Sentence15: Thank you can I get the area, postcode, and address of tepin? Sentence16: j restaurant is located at 86 Regent Street City Centre, postcode cb21dp. Sentence17: No, that will be all, thank you. You have been very helpful and also patient. Have a great day. Sentence18: I also need their address and postcodes please Sentence19: What is the entrance fee for those two options? Sentence20: The prices for these restaurants are cheap. Sentence21: The telephone number for the Dojo is 01223363471 and the telephone number for the J restaurant is 01223307581. Sentence22: Great! I'll also need a taxi to go between the two. I'll need to leave the restaurant by 08:00. Question: Who has spoken the sentence 14? (A) User (B) System
Output: 


Answer: (A) User