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 may I aid you for today? 
 customer: Dennis Parker here. I am a social activist, I have to host a campaign against gun culture at Detroit. So please book my ticket from Denver. 
 agent: I am glad to help you with that. Can you please let me know your planned dates of your journey? 
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 agent: Certainly, please provide your nearest airport codes. 
 customer: My genesis and terminus airport codes are DEN and DTW. 
 agent: Please wait for a while, I will get a suitable flight for your journey. 
 customer: Sure. 
 agent: Sorry to say this Parker, there are no flight which can travel to your region on your planned dates of your journey. 
 customer: No problem, thank you for checking. 
 agent: You are welcome, thank you for reaching out here. Hope you have a nice day.
customer: My itinerary dates are 06/30 and 07/02.