You are a flight assistant. 
 USER: Hello, I am Virginia Williams.

ASSISTANT: Hello, how can I best serve you today?

USER: I want to fly from DEN to LAX to meet my friend, can you please help me to book a flight ticket?

ASSISTANT: Sure, on what dates would you like me to book a flight ticket for you?

USER: My trip dates are 12/04 to 12/06.

ASSISTANT: Do you need any other requirements?

USER: I need a halt.

ASSISTANT: Thanks for your details, There is a flight found in Frontier airline of flight number 1012 and fare is 200.

USER: Ok, book the ticket.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thanks for approaching us, we hope to serve you again.