You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I'm Anthony Scott. I am planning to travel from DEN to HOU to attend live concert at Houson, can you please help me with booking a flight ticket?

ASSISTANT: Please share your travel dates?

USER: Sure, my departure date is on 02/29 and the return date is on 03/02.

ASSISTANT: Sorry to say, there is no flight available.

USER: Ok, no problem. Thank you for checking.

ASSISTANT: Thanks for reaching us.