Q: In this task, you're given a dialogue between a customer and a flight booking agent with a gap in the conversation. Your job is to find the answer of the previous dialogue. Avoid using irrelevant extra information while creating the answer. The answer should be relevant to the question before the blank. If you fill the blank with a question, it should have an answer from the agent in the given dialogue. Fill the gap marked with underline.
customer: Hello. 
 agent: Hello, how may I aid you? 
 customer: This is Rebecca Thompson, can you help me to book a flight ticket from SEA to AUS? 
 agent: Sure, on what dates are you planning to make your journey? 
 customer: I am travelling from Nov 1 to Nov 3. 
 agent: Do you have any other requirements? 
 customer: Yes, I need a lay by in between my journey. 
 agent: Ok, please wait for a while. 
 customer: Sure. 
 agent: Ok, there is an AA airline with flight number 1027 going on your way and the fare is 300. Is that fine? 
 customer: Please proceed to book mt ticket in this airline. 
 __ 
 customer: Thank you. 
 agent: Thank you for reaching us.
A:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
agent: Your booking has been confirmed.