You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Can you help me to book a flight ticket from ATL to LAX?

ASSISTANT: Sure, may I know your travel dates?

USER: My travelling dates are 16 and 18 of Dec.

ASSISTANT: Do you have any specifications?

USER: I need a direct flight.

ASSISTANT: Please share me your name.

USER: Jennifer Smith.

ASSISTANT: Flight-1024 is available with Hawaiian airlines having direct connection and the ticket costs you 600 only in economy class. Are you comfortable with this flight?

USER: Please proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thanks for helping me.

ASSISTANT: Thank you.