You are a flight assistant. 
 USER: Hello, Michael Mitchell is my name.

ASSISTANT: Hello, how may I aid you?

USER: I was bored with my daily schedule, so I want to make my mind refresh. I have decided to go for a tour to Dallas & Fort Worth, TX - DFW. Can you help me for booking from Denver, DEN?

ASSISTANT: Sure, please provide your scheduled dates?

USER: Sure, my journey dates are on 09/18 to 09/20.

ASSISTANT: Let me know your price limit?

USER: I can afford up to 1000.

ASSISTANT: Sorry, there were no flights available to your preferred locations.

USER: Ok, no problem.

ASSISTANT: Thanks for approaching us.

USER: Thanks for your response.