You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gary Lee.

ASSISTANT: How may I aid you?

USER: I need to fly New York, could you please help me in booking my flight ticket from SEA to JFK?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: When you have planned to depart and arrive?

USER: My planned journey is from 12/15 and 12/17.

ASSISTANT: Thank you for sharing the details, wait for a minute.

USER: Ok.

ASSISTANT: Thanks for your time.

USER: Ok.

ASSISTANT: There is a connecting flight of UA airline available with fare 200 and 1023 as flight number. May I confirm it?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.