You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I help you?

USER: I want to book a flight ticket to Washington with price under 500. Can you please help me with it?

ASSISTANT: Sure. may I know your airport codes?

USER: My airport codes are EWR-IAD.

ASSISTANT: Can you share your travelling dates?

USER: Travel dates are 06/10 and 06/12.

ASSISTANT: May I know your name?

USER: My name is Raymond Young.

ASSISTANT: There is a flight 1021 in Jet Blue airline and price 200 with a connection. Shall I proceed?

USER: You can proceed with booking.

ASSISTANT: Ok, Your ticket has been done.

USER: Thanks for the help.