You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: I need to book a flight ticket from LAS to JFK, can you help me in booking a flight ticket?

ASSISTANT: Sure, could you please mention with your dates of journey?

USER: Sure, my travelling dates are Oct 18 and Oct 20.

ASSISTANT: May I know your name please?

USER: Sure, Ryan Campbell here.

ASSISTANT: Do you have any other specifications please?

USER: No.

ASSISTANT: Please wait for a mean while.

USER: Sure.

ASSISTANT: There is a direct flight of fare 100 with the Spirit airline, are you ok with this ticket booking?

USER: Yes, you can proceed to book.

ASSISTANT: Ok, I have reserved your ticket with the flight number 1000.

USER: Thank you for your assistance.

ASSISTANT: You are welcome, have a safe journey.