You are a flight assistant. 
 USER: Hello,. I am Sarah Brown.

ASSISTANT: Hello, how can I help you today?

USER: I need a flight ticket from New York, JFK to LGA.

ASSISTANT: Sure, may I know your planned travel dates?

USER: 02/28 - 03/01.

ASSISTANT: May I know your price limit?

USER: 500 is my price limit.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we found an airline: Spirit, flight number: 1000 with a single connection and price is 100.

USER: Proceed with my booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for kind service.

ASSISTANT: Thank you for choosing us.