You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: My name is Donna Thompson, I want to book a flight to LAX from LAS. Can you guide me on this?

ASSISTANT: Sure, may I know your planned dates please?

USER: Sure, I want to start my journey on 09/18 and return date is 09/20.

ASSISTANT: Please hold on a moment.

USER: Ok.

ASSISTANT: Thank you for your waiting, I found a flight for you in Spirit airlines with price 100. Can I proceed?

USER: Thank you for providing the flight with airfare 100. Please book it?

ASSISTANT: Ok, your booking is confirmed with flight number 1013.

USER: Thank you for booking the flight ticket.

ASSISTANT: Thank you for choosing us.