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 can I aid you? 
 __ 
 agent: Sure, I can help you. Can you please provide your journey details? 
 customer: I would like to visit all the places in Detroit, MI - DTW. It is a round trip. I will start on 08/15 and return on 08/17. 
 agent: Please wait a moment. 
 customer: Sure. 
 agent: Thanks for your time. There is a flight with airline Southwest and airline number is 1007. Fare is 100 with one connection. Shall I proceed? 
 customer: Yes, you can. 
 agent: May I know your name? 
 customer: Joseph Scott is my name. 
 agent: Your ticket has been reserved. 
 customer: Thanks for booking my ticket. 
 agent: Thanks for connecting with us.
customer: I need a flight ticket, Can you please book a ticket?

customer: Hello. 
 agent: Hello, how may I oblige you today? 
 customer: Due to sudden change of my business meeting because of some technical problem, I need to change my reservation so can you help me with that? 
 agent: Sure, may I know your good name? 
 __ 
 agent: Ok, please wait for a minute. 
 customer: Sure. 
 agent: Sorry, there is no reservation exist on your name to do modification. 
 customer: Ok, no problem. Thanks for the information. 
 agent: Thank you for reaching us.
customer: I am Samuel Mitchell.

customer: Hello. 
 agent: Hello, how may I assist you? 
 customer: Is it Central Booking Agency? 
 agent: Yes, say what help are you expecting from my side? 
 customer: Can you book a flight ticket from AUS to LGA? 
 agent: Sure, please mention your dates of trip? 
 customer: It's from 02/09 to 02/11. 
 agent: Ok, please hold on for a moment. 
 customer: Ok, take your time. 
 agent: Sorry, there is no flight is available as per your respective details. 
 customer: Ok, no problem. 
 agent: May I know your name please? 
 customer: Sure, my name is Brenda Clark. 
 agent: Thank you for your information. 
 __ 
 agent: You are welcome.

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
customer: That's ok.

