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.
Problem:customer: Hello. 
 agent: Hello. 
 customer: I am Paul Scott. 
 agent: How may I oblige you today? 
 customer: I want to book a flight from DCA to DEN. Could you help me in booking? 
 agent: Sure, I am here to help you. 
 customer: Thank you. 
 agent: When you are willing to travel? 
 customer: My preferable dates are from 06/14 to 06/16. 
 agent: Do you have any specifications? 
 customer: Yes, I need a halt. 
 agent: Ok, please wait. 
 __ 
 agent: Thanks for waiting. Sorry, there are no flights found on your name. 
 customer: That's ok, no problem. Thank you. 
 agent: Thank you for reaching us.
Solution:
customer: Ok.