Given the task definition and input, reply with output. 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: Hi, I am Larry Miller. 
 agent: Hello Larry, how may I assist you? 
 customer: I am planning to attend my friend's birthday party at Austin, can you help me to book a connecting flight? 
 agent: Please, share your location airport codes? 
 customer: My source is at Philadelphia, PA - PHL and destination is TX - AUS. 
 agent: May I know your travel dates please? 
 customer: I want to fly on 03/01 and return on 03/03. 
 agent: Here is a flight matching your dates and codes, can I proceed it? 
 customer: You can go with the booking. 
 __ 
 customer: Thanks for your quick response. 
 agent: Thank you for reaching us.

agent: Your ticket has been booked with 1007 flight number, and the airline is AA.