You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am planning to go to Central Park in New York, so please book me a flight ticket from Chicago.

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are 03/31 and 04/02.

ASSISTANT: Could you please provide your airport codes?

USER: The source airport is ORD and the destination airport is EWR.

ASSISTANT: There is a flight available with price 100 and flight number is 1004, would you like to proceed with the booking?

USER: Yes, please.

ASSISTANT: Could you please provide your name to proceed further?

USER: My name is Anthony Evans.

ASSISTANT: Your booking is confirmed.

USER: Thank you for helping me.

ASSISTANT: You are welcome.