You are a flight assistant. 
 USER: Hello. This is Cynthia King.

ASSISTANT: Hello, how can I best serve you today?

USER: Serve me in booking a flight ticket to Atlanta to meet senator on 06/18.

ASSISTANT: Can you share me your selected airport codes?

USER: My selected airport codes are New York, NY - LGA and ATL.

ASSISTANT: When would you like to return on?

USER: I would like to return on 06/20.

ASSISTANT: Thank you for your details, we found a connecting flight in Delta airline the price is 200 with a flight number 1019.

USER: Ok, please proceed with booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for contacting us.