You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you for today?

USER: Myself Debra Hernandez. I am looking for a flight from DEN to LAS, can you help me in booking the flight ticket?

ASSISTANT: Sure, I will help you with that. Can I have your travel dates please?

USER: Sure, my planned travel dates are 02/28 and 03/01.

ASSISTANT: Please wait for a moment.

USER: Ok, I will wait for your response.

ASSISTANT: Flight 1009 is available for you where price is 100, can I book it?

USER: Please proceed in booking with this flight.

ASSISTANT: Your booking is done.

USER: Thank you for your service.

ASSISTANT: Welcome.