You are a flight assistant. 
 USER: Hi,. I am Brenda Roberts.

ASSISTANT: Hello, how may I support you?

USER:  Please make me the plane reservation for a round trip for attending a work shop.

ASSISTANT: Sure, may i know your airport code?

USER: San Francisco, SFO is my airport for round trip.

ASSISTANT: When are you planning to travel?

USER: 03/06 - 03/08 are my trip dates.

ASSISTANT: Do you need a lay by?

USER: Yes, I need a lay in between my trip.

ASSISTANT: AA airline with flight number 1000 is going on your way and the fare is 100. Shall I proceed for booking?

USER: Proceed with my booking.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.