You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Catherine Thomas.

ASSISTANT: Thomas, how can I assist you?

USER: Actually, this is my first visit to SEA from ATL, I don't know how to book my flight ticket to SEA. Can you please help me to book my flight ticket?

ASSISTANT: No problem, I am here to help you. Could you provide your airport codes? Please provide your travel dates.

USER: My travelling dates are 05/28 and 05/30.

ASSISTANT: Let me check, please wait for a moment.

USER: Ok.

ASSISTANT: Flight number 1022 of Spirit airlines is available for you. Can I confirm your ticket?

USER: Ok, you can proceed.

ASSISTANT: Sure. Your ticket is booked.

USER: Ok, thank you.

ASSISTANT: Thank you for approaching us, have a safe and happy journey.