You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I am Samuel Mitchell. I want to book a ticket to Washington to visit Statue of Liberty.

ASSISTANT: Ok.

USER: Aid me to book a flight on 11/23.

ASSISTANT: Sure, I am mirthful to serve you. Can I know your airport codes of journey?

USER: Airport codes are from EWR to DCA.

ASSISTANT: May I know how much you can afford for this journey?

USER: Price limit is 500.

ASSISTANT: Kindly, share your return date of trip.

USER: Return date is 11/25.

ASSISTANT: Please wait for a moment, I will search flight for you.

USER: Sure.

ASSISTANT: Thank you for being patience, there is a fight available with Spirit airline, fight number 1024 with fare 300 and a lay by. Shall I proceed to confoirm?

USER: Book it.

ASSISTANT: Your reservation is done successfully.

USER: Thank you for booking.

ASSISTANT: Thank you for availing us.