You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Gregory Smith.

ASSISTANT: How may I assist you?

USER: I would like to meet my friends at Las Vegas, will you help me in booking the flight tickets?

ASSISTANT: Sure, may I know your travel dates?

USER: My travelling dates are 06/06 and 06/08.

ASSISTANT: Please share me your take off and landing airport code?

USER: My origin airport code is OAK and destination airport code is LAS.

ASSISTANT: We found a flight on your details with airline frontier, flight number: 1024. Shall I book this ticket?

USER: Sure, you can proceed with the booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for helping me.

ASSISTANT: Thank you.