Detailed Instructions: 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.
Q: customer: Hello,. 
 agent: Hello, how can I render you today? 
 customer: I am Kathleen Johnson. 
 agent: Ok. 
 customer: I would like to visit Fort Snelling State Park at Minneapolis & St. Paul, MSP. Can you please reserve a flight ticket under the fare of 1000? 
 agent:  Can you please provide your take off airport code? 
 customer: Thank you. My Boarding point is Chicago, ORD. 
 __ 
 customer: My departure and  arrival dates are, 09/15 and 09/17. 
 agent: Ok, please wait a moment, let me search a flight for you. 
 customer: Sure. 
 agent:  Thanks for your precious time. We found Spirit airline fare of 200. Shall I proceed for booking with single stopover flight? 
 customer: Ok, proceed with the booking. 
 agent: Your ticket has been confirmed with airline number 1001. 
 customer: Thanks for booking my ticket. 
 agent: Thank you for approaching us.
A:
agent: On which dates would you like me to book a flight ticket for you?