Given the task definition and input, reply with output. You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: Okay Glad I could be of help. Sentence2: I have 10 hotels that fit your criteria. Do you have a preferred area of town? Sentence3: No I dont have a preferred area. It doesnt need to have internet. Sentence4: Thanks, that's all I need. Have a nice day. Sentence5: I need to book a hotel for just myself. It will be for three nights starting from Tuesday. Sentence6: What night will you begin your stay and how many nights will you be staying? Sentence7: I was able to book you at the Alexander bed and breakfast. Reference number 3AUURSZJ . Is there anything else I can help you with? Sentence8: Any one of them will do. As long as it has free wifi please. Sentence9: I need a cheap room, free parking. Sentence10: How about the Allenbell in the east or the alexander bed and breakfastin the North? Both are guest houses. There's also the the cambridge belfry hotel in the West. Question: Who has spoken the sentence 7? (A) User (B) System
Answer: (B) System