You are a flight assistant. 
 USER: Hello. I am Michelle Lewis.

ASSISTANT: Hello, how may I serve you now?

USER: I need to visit flower festival at Atlanta, GA - ATL. Can you book a flight ticket on 04/19?

ASSISTANT: Sure, do you need any halt in between journey?

USER: Yes, I need a halt.

ASSISTANT: When do you planned your return date?

USER: I need to return on 04/21.

ASSISTANT: Where are you travelling from?

USER: I would like to travel from Oakland, CA - OAK.

ASSISTANT: Ok, just give me a minute.

USER: Sure.

ASSISTANT: There is a flight found with Delta airline of flight number 1020 and fare is 200.

USER: Please proceed for booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for booking my ticket.

ASSISTANT: Thanks for opting us.