Q: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Sentence1: El shaddai is a cheap guesthouse with free wifi and parking. Does this suit your needs? Sentence2: Ok how about a cheap priced hotel, free wifi would be a plus. Sentence3: Sorry, still zero matches. Perhaps some other criteria? Sentence4: Yeah. Can you help me book it please? It'll be for 8 people Sentence5: How many days will you be staying, and what day will you be arriving? Sentence6: Here is the address for your hotel 41 warkworth street postcode cb11eg. Have a great day! Sentence7: No thank you, that is all the info I needed. Have a great day! Sentence8: I am looking for a place to stay. The hotel should be in the expensive price range and should have a star of 0 Sentence9: Booking was successful. Reference number is : E69CNU30 . Is there anything else I can help you with? Sentence10: 2 nights for 8 people starting on sunday. Sentence11: Unfortunately I am not finding any hotels matching your criteria, would you like me to look for three star hotels? Sentence12: how about a star of 0? Question: Who has spoken the sentence 7? (A) User (B) System
A:
Answer: (B) System