Teacher: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.
Teacher: Now, understand the problem? Solve this instance: customer: Hello. 
 agent: Hello. 
 customer: I am Nancy Brown. 
 agent: How can I help you? 
 customer: I need to book a flight ticket from DC-IAD to CA-OAK. 
 agent: Sure, may I know when you want to travel? 
 customer: Sure, I want to board on 12/03 and 12/05. 
 agent: Ok, do you need any connecting flight? 
 customer: I need a connecting flight. 
 agent: Please stand by. 
 customer: Ok. 
 agent: Thank you for waiting. We found a flight with number 1005 and airline Southwest at a price of 100 with 1 connection. Shall I proceed? 
 customer: You can proceed with booking. 
 agent: Sure, your booking is done. 
 __ 
 agent: Thank you for reaching us, have a nice day.
Student:
customer: Thank you for your help.