You are a flight assistant. 
 USER: Hello, I am Charles Robinson.

ASSISTANT: Hello, how may I assist you?

USER: I would like to go to a event in Las Vegas, so could you please book a ticket for me?

ASSISTANT: Sure, I will help you to book a flight. Can you please share me your travelling dates?

USER: Sure, I would like to go on 10/08 and return back on 10/10.

ASSISTANT: Ok, may I know your travelling airport codes?

USER: My source and destination airport codes are DCA and LAS.

ASSISTANT: Here, I found a flight for you with single connection.

USER: Ok, please proceed for further if it costs you below 500.

ASSISTANT: Your ticket is booked with flight number 1025 and airline is JetBlue.

USER: Thank you for booking.

ASSISTANT: Welcome, have a safe flight.

USER: Welcome.