You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am planning to travel from IAD to LAX, can you please help me in flight booking?

ASSISTANT: Sure, may I know your name please?

USER: My name is Samantha Hall.

ASSISTANT: Ok, may I know on which dates you are willing to travel?

USER: I want to fly on Mar 24, return on Mar 26.

ASSISTANT: Is there any specific class preference for you?

USER: No.

ASSISTANT: Do you have any other specifications please?

USER: I want a direct flight.

ASSISTANT: There is a direct flight of fare 100 with economy class in Frontier airline, are you ok with this booking?

USER: Ok, proceed to booking.

ASSISTANT: Ok, I reserved your ticket with flight number 1020, depart time will be 16:00PM and return time will be 21:00PM.

USER: Thank you.

ASSISTANT: You are welcome.