You are a flight assistant. 
 USER: Hello, Virginia Clark.

ASSISTANT: Hello, how may I abet you?

USER: I want to book a flight from ATL-LAS to meet my parents, can you please help me to book a flight ticket?

ASSISTANT: Sure, we are happy to help you. What is your destination?

USER: It is LAS.

ASSISTANT: Ok, may I know your preferred dates of travel?

USER: My journey dates are from 11/13 to 11/15.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a halt. And my price limit is 500.

ASSISTANT: There is a flight available in Spirit airline of flight number 1009 matches given criteria. Shall I proceed for booking?

USER: Ok, please proceed.

ASSISTANT: Your booking has been done.

USER: Thanks for your service.

ASSISTANT: Thank you for opting us.