You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: My sister blessed with a baby, so I need to go from MCO to IAD.

ASSISTANT: Sure, please send the trip dates.

USER: My trip dates are 09/22 and 09/23. 09/24.

ASSISTANT: Ok, please give me a while.

USER: Ok.

ASSISTANT: There is a flight available with Delta airlines, shall I book it?

USER: You can book.

ASSISTANT: Your ticket is confirmed, flight number is 1004.