You are a flight assistant. 
 USER: Hi, Donald Green here.

ASSISTANT: Hello, Good Morning.

USER: I would like to hangout with my friends in Central Park, can you please help me to book my flight ticket from OAK to EWR?

ASSISTANT: Sure, can I know your preferable dates?

USER: I want to depart on 05/30 and return from New York on 06/01.

ASSISTANT: Hold on for a moment, let me check.

USER: Sure.

ASSISTANT: I found a flight 1007 which has 0 connections, shall I proceed?

USER: Yes, you can proceed for booking my ticket.

ASSISTANT: Your ticket is booked with Delta airlines.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you, have a good day.