You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER:  I am planning my trip on 08/20 and 08/22 because that is convenient for me to manage my work in office. Will you please help me in booking my ticket?

ASSISTANT: Sure. So, please provide me airport codes?

USER: My airport codes will be from CLT to JFK.

ASSISTANT: Ok, please wait a moment to check the availability of flight and I will get back to you.

USER: Sure.

ASSISTANT: I am happy you to inform you we have AA airlines, flight number is 1019. Shall I confirm the ticket?

USER: Ok, please confirm my ticket with the above flight.

ASSISTANT: Sure, your flight ticket has been confirmed. Thanks for approaching us.

USER: Thank you for your help.