You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Linda Clark. Can you help me in booking a flight ticket from OAK to DTW?

ASSISTANT: Sure, can I know the travel dates please?

USER: I want to travel on 02/19, and return on 02/21.

ASSISTANT: Do you have any requirements?

USER: I need a direct flight.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

ASSISTANT: There is a direct flight in Delta airline, can I book it?

USER: Proceed with the booking.

ASSISTANT: Your ticket has been booked with flight number 1016.

USER: Thanks for the help.

ASSISTANT: Thank you for approaching us.