You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Example 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
Example output: Answer: (A) User
Example explanation: The sentence 1 is said by a user because the intent of it says that the information has to be gathered from the system
Q: Sentence1: rosa's bed and breakfast Sentence2: Is it a type of guesthouse and is it in the south? Sentence3: yes I found it and it was great Sentence4: You're welcome. Have a good day. Sentence5: Thank you for the reference number, how about the sri lankan restaurant in the south? Any luck finding one? Sentence6: That sounds good. Can you book it for 3 people to stay 5 nights on tuesday? Sentence7: Nah, I'd like to stay in the same area as the hotel. Let's try a Portuguese restaurant instead. Sentence8: I apologize but there are no Sri Lankan restaurants in south Cambridge. Would like to explore another area? Sentence9: Can I also get a taxi from the hotel to the restaurant? I'd like to leave the hotel by 5:30, please. Sentence10: Rosa's bed and breakfast on 53 roseford road is inexpensive and has a 4 star rating. Would you like me to make a reservation for you? Sentence11: The reference number is 7AAVA5YO Sentence12: Yes, sir, we have the booking all completed for you. That was Five days starting Tuesday, for three people. Is that correct? Sentence13: Yes I got you a taxi. It is a grey Volkswagen whose contact number is 07956461934. Sentence14: Hi, I'm planning a visit to the south of Cambridge and am looking for a bed and breakfast. Sentence15: Absolutely. The postcode is cb17dy, the address is at Cambridge Leisure Park in Clifton Way, and the phone number is 01223327908. Sentence16: Sounds great. Thanks for your help. Sentence17: No but could I get the postcode, address and phone number please? Sentence18: You're in luck. We do indeed have a Portuguese restaurant in that area. The name is Nandos. Would you like a reservation? Sentence19: Yes, but I do need the reference number, please. I'm also looking for a sri lankan restaurant in the south. Sentence20: I'm sorry there are no results for a sri lankan restaurant in the south. Would you like to change some criteria, such as area or cuisine? Question: Who has spoken the sentence 10? (A) User (B) System
A:
Answer: (A) User