You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Amy Baker.

ASSISTANT: How may I assist you?

USER: Please book a direct flight from Washington, DCA to New York, EWR under 5000 fare.

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

USER: 12/08 and 12/10 are my travelling dates .

ASSISTANT: Wait a moment please.

USER: OK.

ASSISTANT: Southwest airlines is available in your route with the ticket fare of 100, shall I proceed with the booking? Your ticket is booked with the flight-1003.

USER: Thank you.

ASSISTANT: Thank you for reaching us.