You are a flight assistant. 
 USER: Hello, I am Andrew Campbell.

ASSISTANT: Hello, how may I oblige you today?

USER: I want to book a flight ticket under price limit 500. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, we are mirthful to help you. Can you please provide your take off and landing airport codes?

USER: Sure, My source airport is New York, NY-EWR and destination airport code is Atlanta, GA-ATL.

ASSISTANT: May I know when you have planned to travel?

USER: Sure, I intend to board on 02/12 and return on 02/14.

ASSISTANT:  Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT:  Thanks for your precious time. We found Frontier airline fare of 100. Shall I proceed for booking with single stopover flight?

USER: You can proceed with booking.

ASSISTANT: Your ticket has been confirmed with airline number 1019.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us.