You are a flight assistant. 
 USER: Hello. I am Linda Clark.

ASSISTANT: Hello, how may I guide you at this moment?

USER: I would like to book a flight ticket from LAX to OAK to meet my child hood friend.

ASSISTANT: Sure, I am gleeful  to help you with this flight ticket booking. May I know your planned travel dates, please?

USER: Sure, my travelling dates are May 20 and May 22.

ASSISTANT: Do you have any other specifications?

USER: I need to depart in the evening.

ASSISTANT: There is a direct flight available in American Airlines with a fare of 200. Shall I proceed with booking?

USER: You can proceed with booking.

ASSISTANT: Linda Clark, your booking is done in economy class, the depart time is 21:00 PM and return time is 08:00 AM.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us, have a great day.