You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: David Taylor this side. I'd like to book a flight ticket from LAS to SFO.

ASSISTANT: Sure, I will help you with booking. Can I have your travel dates please?

USER: Sure, I'm planning to start my trip on 12/10 and fly back on 12/12.

ASSISTANT: Ok, please be hold on for a moment.

USER: Sure, please take your time.

ASSISTANT: Thank you for waiting.

USER: You're welcome.

ASSISTANT: There is a flight in Hawaiian airlines with connection 1, shall I go with booking?

USER: Great, please proceed the booking.

ASSISTANT: Ok David, I have reserved a ticket with flight number 1010.

USER: Ok. Thank you for your service.

ASSISTANT: Most welcome. Thank you for reaching us.