You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Donna Brown. I am planning to visit DFW to receive mt grand parents, can you please help me to book a flight ticket from LAX?

ASSISTANT: Sure, may I know your depart and return dates?

USER: Sure, my trip dates are Mar 27 and Mar 29.

ASSISTANT: Do you have any specification?

USER: Yes, I need a business class.

ASSISTANT: We found a flight on your details with airline AA, flight number: 1018. Shall I book this ticket?

USER: Ok, please reserve 1 ticket for me.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you.