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: Hi. 
 agent: Hello,. 
 customer: I am Helen Allen. 
 agent: How may I help you? 
 customer: I would like to participate in the sky driving in Washington with my friend to enjoy the driving. Could you please assist me in making a plane reservation? 
 agent: Please provide your journey dates? 
 customer: My departure and arrival dates are 02/25 and 02/27. 
 agent: Please specify airport codes? 
 __ 
 agent: Please provide connections limit? 
 customer: I need a flight with one connection. 
 agent: Ticket is available with flight number 1016, airline UA for price 100. 
 customer: You can proceed with the booking. 
 agent: Ticket is booked. 
 customer: Thank you for your response. 
 agent: Thanks.
Output:
customer: My source and destinations are from CA-LAX to DC-IAD.