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.
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Question: customer: Hello, my name is Robert Miller.
agent: Hello, how may I help you?
customer: I want to visit Detroit to enjoy my fun-filled holidays, can you book a ticket within the price of 500?
agent: Ok, may I know your travelling dates?
customer: Sure, my travelling will be on 09/01 and 09/03.
agent: Kindly, provide me your airport abbreviates?
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agent: Do you have any connection limit?
customer: Yes, I need a flight with 1 connection.
agent: Ok, please be on hold.
customer: Sure.
agent: I found a flight with 1004 number with AA airline. Shall I proceed with the booking?
customer: Yes, proceed.
agent: Your ticket has been booked with single connection and fare of 100.
customer: Thank you.
agent: Thank you for reaching us. Have a nice flight.

Answer: customer: Yes, I would like to travel from HOU to DTW.

Question: customer: Hello.
agent: Hello. May I know your good name please?
customer: I am Ashley Harris.
agent: Ok Ashley, how can I assist you?
customer: I wan to book a flight from ATL to LGA in the month of august.
agent: Ok, May I know the travelling dates?
customer: My departure date is 08/04 and my arrival date is 08/06.
agent: Ok, please wait for a moment.
customer: Please make sure that, my connections limit should be 1.
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customer: Ok, proceed.
agent: Your ticket is booked. Thank you for approaching us, have a safe journey.
customer: Thank you for helping me.

Answer: agent: Ok, there is a flight 1013 in Hawaiian airline has the price 100.Can I proceed.

Question: customer: Hello, I am Karen Martin.
agent: Hello, how can I help you today?
customer: I am planning to attend sports event in MI - DTW, can you help me with connecting flight ticket?
agent: Sure, we are here to help you. Kindly mention your travel dates?
customer: My travelling dates are from 06/29 to 07/01.
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customer: My take off is from TX - HOU.
agent: Ok, please wait a moment.
customer: OK.
agent: There is a flight with your requirement, airline is Frontier with price 100 and single connection.
customer: You can proceed with booking.
agent: Your booking is done.
customer: Thank you for the help.

Answer:
agent: Can you please provide me your take off airport code?