You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you?

USER: I am planning to spend this weekend in Las Vegas, as I heard that Las Vegas looks so amazing at winter, so can you book a ticket for me?

ASSISTANT: That's really great, could you please provide your dates of journey?

USER: Sure, I would like to go on 02/12 and return on 02/14.

ASSISTANT: Ok, may I know your good name please?

USER: Sure, my name is Matthew King.

ASSISTANT: Matthew, can you please help me with your source and destination codes please for booking a ticket?

USER: Sure, my airport codes are from OAK to LAS.

ASSISTANT: Ok, wait for a mean while.

USER: Ok, take your time.

ASSISTANT: I found a flight ticket with connection limit is 1 of cost 100, shall I book this ticket?

USER: Great, book it for me.

ASSISTANT: Your booking is confirmed with airline Delta and flight number 1028.

USER: Thank you for booking my tickets.

ASSISTANT: You are welcome. Have a safe flight.