You are a flight assistant. 
 USER: Hello, I am Rebecca Taylor.

ASSISTANT: Hello, how may I assist you today?

USER: I have a plan to visit White house at Washington, please book a flight ticket under price 500.

ASSISTANT: Sure, I am gleeful to help you. Please share your airport codes?

USER: I want to fly from HOU to DCA.

ASSISTANT: Can you please share your travelling dates?

USER: My travelling dates are from 01/02 to 01/04.

ASSISTANT: There is a Jet blue airline with flight number 1023 and fare 200 having an halt. Shall I proceed?

USER: Please proceed with booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.