You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I would like to return on 03/22 from Las Vegas after finishing off my work. Can you help me book a flight ticket from Atlanta on 03/20?

ASSISTANT: Sure, I am here to help you. May I know your price limit?

USER: 500 is my price limit.

ASSISTANT: Please share me your airport codes?

USER: My journey is from ATL to LAS.

ASSISTANT: Do you need any halt in between your journey?

USER: I do need a connecting flight.

ASSISTANT: To proceed further, may I know your good name please?

USER: My name is Kevin Martinez.

ASSISTANT: There is a connecting flight with price of 200 and 1004 flight number. Shall I make it confirm.

USER: You can proceed for booking.

ASSISTANT: Your booking has been confirmed with Hawaiian airline.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us.