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.

Example Input: customer: Hello.
agent: Hello, are you looking for flight ticket booking?
customer: I need to reach MCO on 08/01.
agent: Ok, can you please give your source airport code and return date?
customer: My source will be AUS, and return on 08/03.
agent: There is a flight available with AA airlines, shall I book it?
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agent: Ok, your ticket is booked with flight number 1003.
customer: Welcome, thank you your help.
agent: Welcome, thank you for booking.
Example Output: customer: Please, proceed on Stephen Parker.

Example Input: customer: Hello.
agent: Hello.
customer: I am Donald Collins.
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customer: I am planning to book a ticket from LAX to IAH. Can you please help me out?
agent: Sure, may I know your travel dates please?
customer: I would like to travel on 04/21 and return back on 04/23.
agent: Ok, do you have any other specifications?
customer: My connection limit is 1.
agent: Please be on hold.
customer: Sure.
agent: I have searched for the flights with your details but unfortunately there are no flights available for you.
customer: Yes, you can proceed the booking. That's fine. Thank you.
agent: Thank you for choosing us.
Example Output: agent: How can I help you?

Example Input: customer: Hello. I'm Nancy Nelson.
agent: Hello. How can I help you?
customer: I am planning to attend music concert at LGA, can you please help me with booking a flight ticket from DEN?
agent: May I know your desired travel dates please?
customer: Sure, I would like to take off on 06/18 and return back on 06/20.
agent: There is no flight available on your desired travel dates.
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agent: Thank you for opting us.
customer: You are welcome.
Example Output:
customer: Ok, no issues. Thank you for checking.