You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Richard Walker here.

ASSISTANT: How can I aid you?

USER: I am looking for a flight with price below 1000. Can you book it?

ASSISTANT: Sure, may I know your nearest airport codes please?

USER: Ok. My airport codes for boarding the flight are CLT to IAD.

ASSISTANT: May I know your journey dates please?

USER: I need a connecting flight. My travelling dates for journey are 02/23 to 02/25.

ASSISTANT: Wait for a while please.

USER: Ok.

ASSISTANT: Hawaiian airlines is available on your route with a ticket fare of 100, shall I proceed with that?

USER: You can book the flight ticket. I am ok with the fare.

ASSISTANT: Your ticket has been booked with flight-1004.

USER: Thank you.

ASSISTANT: Thank you for approaching us.