You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Ronald Lopez. I want to book a ticket from LAS to ORD.

ASSISTANT: Sure, I am here to help you. Please share your travelling dates.

USER: My travel dates are 12/20 and return on 12/22.

ASSISTANT: May I know your price limit?

USER: Please proceed for booking, if the connection limit is 1.

ASSISTANT: There is a flight-1000 of Spirit airlines, shall I proceed?

USER: Proceed for booking.

ASSISTANT: Sure, your booking is done.

USER: Thank you.

ASSISTANT: Welcome.