You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I need you to book a flight ticket from LAS to OAK.

ASSISTANT: Sure, may I know your good name please?

USER: Ronald Williams here.

ASSISTANT: May I know on which dates you are willing to travel?

USER: February 15 and 17 are my planned travelling dates.

ASSISTANT: Is there any specific class preference for you?

USER: I am comfort with any class to fly.

ASSISTANT: May I know your airline preference please?

USER: I am happy to fly in a airlines.

ASSISTANT: May I know your connection limit please?

USER: I need a break in my journey.

ASSISTANT: May I know your preferable time for journey?

USER: I am comfortable to fly at any time.

ASSISTANT: There is a direct flight of fare 200 with economy class in Delta airline, shall I proceed for booking?

USER: Please book the ticket.

ASSISTANT: Your reservation has been confirmed with flight number 1004, depart time will be at 19:00 hours and return time will be at 10:00 hours.

USER: Great! Thank you very much.

ASSISTANT: You are welcome.Thank you for reaching us.