You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be of your service?

USER: I want to book a flight ticket to Atlanta with price under 500. Can you help me with it?

ASSISTANT: Sure. May I know your name?

USER: My name is Kimberly Brown.

ASSISTANT: When are you willing to travel?

USER: My travel dates are 02/07 and 02/09.

ASSISTANT: Can you provide me your airport codes?

USER: Airport codes are LGA-ATL.

ASSISTANT: Ok, please stand by.

USER: Sure.

ASSISTANT: We found an Southwest airline available on your required dates and the cost of ticket is 100.

USER: Proceed with booking.

ASSISTANT: Your booking has been done with flight number 1018.

USER: Thanks for the help.

ASSISTANT: Thank you for choosing us.