You will be given a definition of a task first, then some input of the task.
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.

customer: Hello, I am James Anderson. 
 agent: Hello, how can I help you today? 
 customer: Please help me in booking my flight ticket from IAH to LAS? 
 agent: Sure, please share me your travelling dates? 
 customer: My planned trip dates are 12/27 and 12/29. 
 agent: Do you have any specifications? 
 customer: I need a halt in my journey. And my price limit is 1000. 
 __ 
 customer: Ok, no issues. Thank you for your help. 
 agent: Thank you for reaching us.
Output:
agent: Sorry, there were no flights with your given details.