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.
Input: customer: Hello. 
 agent: Hello. 
 customer: I am Sharon Baker. 
 agent:  How can I help you? 
 customer: I want to book a flight ticket from DC - DCA to NV - LAS, so please help me in booking a flight ticket. 
 agent: Sure, may I know your travel dates? 
 __ 
 agent: Do you have any preference? 
 customer: Yes, I need a halt. 
 agent:  We found a connecting flight Frontier with Flight number 1009 and fare is 100. 
 customer: You can proceed to booking. 
 agent:  Your booking is done. 
 customer: Thank you. 
 agent:  Thank you for availing us.,.
Output:
customer: I want to fly on 09/14 and return on 09/16.