You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I need to go Las Vegas, can you book a ticket from CLT to LAS?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: Sure, my planned departure and return travel dates are 25th and 27th of July.

ASSISTANT: Can I know your name?

USER: I'm Jerry Williams.

ASSISTANT: Do you have any specifications?

USER: I prefer single connected flight.

ASSISTANT: There is a connecting flight 1004 of Hawaiian airlines, can I proceed?

USER: That's fine for me, you can proceed for booking.

ASSISTANT: Your booking is done.

USER: Thank you so much for your help.

ASSISTANT: Welcome.