You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: Sarah White is here. Can you book a flight ticket with price 500?

ASSISTANT: Sure, may I know your source and destination?

USER: I want to enjoy Beach Holidays at San Francisco, my airport codes are from CLT to SFO.

ASSISTANT: Could you please let me know your journey dates?

USER: My journey dates are from 12/09 to 12/11. I need a connecting flight.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Thanks for being patient, we found Spirit airline with one connection and the price 200 matches your request.

USER: Reserve my seat.

ASSISTANT: Your booking is confirmed with the flight number-1009.

USER: Thank you for quick response.

ASSISTANT: Thanks for choosing us.