You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: David Hall here.

ASSISTANT: In which way I can help you today?

USER: I need your help in booking of a flight ticket between DEN and LAX, can you please help me out with booking of a flight ticket on those locations?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT:  May I know your travel dates for booking flight ticket?

USER: Sure, I am planning to move on 07/24 and please book my return ticket on 07/26.

ASSISTANT: Please hold on a moment.

USER: Ok, take your time.

ASSISTANT: There is a flight available in this route, airline is Southwest and flight number is 1009. Are you ok with this flight?

USER: That's great, it's perfectly matches with my requirements, you can proceed with booking.

ASSISTANT: Your flight ticket is booked successfully.

USER: Thank you for your help, have a nice day.

ASSISTANT: Thank you for contacting us, have a nice day.

USER: Most welcome.