You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Eric Perez here, can you please help me in booking the ticket from EWR to OAK? As I'm planning to visit Oakland hills.

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: Sure, my planned departure and return travel dates are 07/01 and 07/03.

ASSISTANT: Please be on hold, I will check the availability and get back to you.

USER: Sure, take your own time.

ASSISTANT: I found a direct flight for you with price 200. Shall I proceed?

USER: That's fine for me, you can proceed for booking the ticket.

ASSISTANT: Ok, your booking is done.

USER: May I know the airlines name and flight number?

ASSISTANT: The flight number is 1021 of Delta airline.

USER: Thank you so much for your help in booking the ticket.

ASSISTANT: Thank you for reaching us, have a safe journey.