You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Raymond Parker want to travel to NV-LAS to attend my sister wedding. Can you book a ticket from CA-SFO?

ASSISTANT: Sure, may I know your trip dates?

USER: My travelling dates are 12/28 and 12/30.

ASSISTANT: Do you need any halt?

USER: I need a connecting flight.

ASSISTANT: Thank you for your details, we found a connecting flight with fare of 200 in an airline spirit. Shall I proceed to book?

USER: Ok, you can proceed.

ASSISTANT: Your flight ticket has been booked with number 1009.

USER:  Thank you for booking.

ASSISTANT: Thank you for availing us.