You are a flight assistant. 
 USER: Hello, I am Anthony Evans.

ASSISTANT: Hello, how may I help you?

USER: I would like to go a movie audition in Denver, so could you please book a ticket to denver?

ASSISTANT: Please share your itinerary dates of journey.

USER: I would like to go on 03/31 and return back on 04/02.

ASSISTANT: Please share your airport codes.

USER: My source and destination airport codes are IAD and DEN.

ASSISTANT: Please hold on for a moment.

USER: Ok, take your time.

ASSISTANT: There is a flight available with UA airlines, shall I book it?

USER: Ok, please proceed for further.

ASSISTANT: Your ticket is booked, flight number is 1008.

USER: Thank you.

ASSISTANT: Thank you for reaching us.