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. I am Kenneth Collins. 
 agent: Hello, how may I guide you at this moment? 
 customer: Can you help me to book a flight ticket from DCA to JFK to attend a board meeting? 
 agent: Sure, we are glad to help you. May I know on which dates you are willing to travel? 
 customer: I want to take off on Dec, 11 and return back on Dec, 13. 
 agent: Would you like to travel in a economy class or in a business class? 
 customer: I am comfortable with any class. 
 agent: May I know if you want any specific time for your departure and return? 
 customer: My return time should be at afternoon. 
 agent: Do you need any break in between journey? 
 customer: Yes. 
 agent: Thanks for your details, We have found a connected flight with Delta airlines, flight number 1009 and the fare of 100. Would you like me to book the ticket? 
 customer: Please proceed. 
 agent: Sure, a seat has been reserved successfully for a economy class flight. 
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 agent: My pleasure, I hope you will enjoy this airline.
Student:
customer: Thank you.