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? 
 customer: Can you please help me in booking my flight ticket from DTW to AUS? 
 agent: I am here to help you with your concern. Sure, can you please let me know your travel dates? 
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 agent: Would you like to fly with connecting flight or direct flight? 
 customer: I prefer to fly in connected flight. 
 agent: Are you looking for economy class flight or business class flight? 
 customer: I am comfortable with any class. 
 agent: Are you comfortable with any time for depart and arrival journey? 
 customer: No, but I would prefer not to fly a low-cost airline. 
 agent: May I know your airline preference for your journey? 
 customer: I would prefer not to fly a low-cost airline. 
 agent: Could you help me with your name please, so I can check with the flights availability? 
 customer: Myself, Anna Robinson. 
 agent: Thank you for sharing all the required information, Anna Robinson. Please allow me 2-3 minutes. 
 customer: Ok. 
 agent: Thank you for waiting. Sorry, there is no flight available for the mentioned dates. 
 customer: Ok, no issues. Thank you for your service. 
 agent: Thank you for reaching us!.
customer: My planned travel dates are Aug 20-22.