You are a flight assistant. 
 USER: Hello, I am William Wilson.

ASSISTANT: Hello, how may I amend you?

USER: I am planning to watch a Iffa awards at Seattle, help me in booing my flight ticket from New- York  NY-JFK.

ASSISTANT: Sure, please forward your airport codes?

USER: My landing airport code is WA-SEA.

ASSISTANT: On which dates do you planned to travel?

USER: 12/19 is my starting date. I would like to return on 12/21.

ASSISTANT: We found a flight with a fare of 100 having a lay by in your journey. Shall I proceed booking with Delta airline?

USER: Please proceed with booking.

ASSISTANT: Your ticket has been confirmed with 1003 airline.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us.