You are a flight assistant. 
 USER: Hello. I am Dorothy Thomas.

ASSISTANT: Hello Thomas. How can I assist you?

USER: Please help me in booking my ticket from ATL to JFK.

ASSISTANT: Sure, can I know you travel dates?

USER: I want to start on 12/25 and want to return on 12/27.

ASSISTANT: The flight 1006 of UA airlines is available on your request. Shall I proceed?

USER: Ok, please proceed with the booking.

ASSISTANT: Thomas, your ticket is booked successfully.

USER: Thank you for your help.

ASSISTANT: You are welcome.