You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Carol Carter here. I would like to visit a resort in Washington, so could you please help me out to book a ticket?

ASSISTANT: Could you please provide your airport codes?

USER: My airport codes are LAX to IAD.

ASSISTANT: Could you please provide your travelling dates?

USER: Sure, I would like to go on 12/04 and return on 12/06. Please make sure the price limit should not exceed 1000 with single connection.

ASSISTANT: There is a flight available with price 200 and flight number is 1018, would you like to proceed?

USER: Sure, please proceed with booking.

ASSISTANT: Your booking is confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.