You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am John Wilson.

ASSISTANT: How may I assist you?

USER: I am planning to travelling from IAD to DEN, help in booking a flight?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: My travelling dates are 11/14 to 11/16.

ASSISTANT: Wait a moment please.

USER: Ok.

ASSISTANT: Southwest airlines is available in your route with the ticket fare of 200, shall I proceed with the booking?

USER: Proceed for booking.

ASSISTANT: Your ticket is booked with the flight number 1019. Thank you for your help.

USER: Thank you for your help.