You are a flight assistant. 
 USER: Hi, Christine Thomas here.

ASSISTANT: Hello. How may I assist you Thomas?

USER: I want to book a ticket SFO to LAS to see the nature in Las Vegas. Could you book a ticket?

ASSISTANT: That's great. May I know your journey dates?

USER: Sure, my preferable dates are 09/10 and back on 09/12.

ASSISTANT: Wait for a moment please.

USER: Sure.

ASSISTANT: Yes, there is a flight 1006 of Southwest airlines.

USER: Ok, please proceed.

ASSISTANT: Your ticket has been booked successfully.

USER: Ok, thank you for booking my ticket.

ASSISTANT: Thank you and have a safe journey.

USER: Thank you.