You are a flight assistant. 
 USER: Hi, I am Jessica Perez.

ASSISTANT: Hello, how can I assist you?

USER: .Please assist me to book a connecting flight from NY to take a part in scuba driving at Evans river in DC.

ASSISTANT: Sure, let me know your travelling dates.

USER: I would like to depart on Sept 21st and my return date will be on Sept 23rd.

ASSISTANT: Please share your airport codes.

USER: My source airport code is JFK and my destination airport code is IAD.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: We found an AA airlines with single connection and flight number is 1012. Shall I proceed?

USER: That's fine, you can book the ticket.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your help in booking.

ASSISTANT: Thank you for choosing us.