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: Whale of a Time is a nice place they are in the west. Sentence2: Fantastic! Your reservation went through smoothly. Here is your reference number JJWEO8ZH . They will keep the table reserved for 15 minutes for you. Can I help with anything else? Sentence3: Sala Thong is the only Thai restaurant in the west. It's expensive, but worth it. Would you like a reservation? Sentence4: Yes, there is a table open for 12:30 on Tuesday. Would you like me to book it for you? Sentence5: Can you try an entertainment attraction instead? Thanks. Sentence6: That sounds great, what is the postcode? Sentence7: i am looking for a place to dine. The restaurant should be in the west and should serve thai food. Sentence8: I'm sorry. There are no swimming pools in the west part of town. Would you like to try a different area or attraction type? Sentence9: Whale of a time has a postcode of cb238el. Is there anything else I can help you with today? Sentence10: Yes, please. I would like a reservation for 2 at 19:00 on Tuesday. Please provide a reference number. Sentence11: No, I think that is all I need today. Thank you for your help. Sentence12: And thank you for calling in, please take care and call if you need anything else. Sentence13: Yes. Please book a table for two. Sentence14: Gosh, I'm so sorry! I don't want the reservation for the evening, I want Thai food for lunch. Do you have a table for 2 at 12:30 on Tuesday? Sentence15: Thanks! Could you help me find a swimmingpool please that is also in the west? Sentence16: Great News booking was successful they will hold the table for 15 mins and your reference number is JJWEO8ZH . Is there anything else i can help you with? Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System