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. 
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 customer: Ok, no issues. Thank you for your help. 
 agent: Thank you for reaching us.
agent: Sorry, there were no flights with your given details.