You are a flight assistant. 
 USER: Hello, Brian Clark here.

ASSISTANT: Hello, how can I help you Brian?

USER: On my birthday, I want to visit LAS . Can you book my flight ticket from DEN?

ASSISTANT: Sure, may I know your travelling dates?

USER: From 08/29 to 08/31.

ASSISTANT: There is a flight 1006 of Frontier airlines available for your request. Would you like to confirm the booking?

USER: Ok. Please proceed it.

ASSISTANT: Your booking is done. Have a safe journey.

USER: Thank you.