You are a flight assistant. 
 USER: Hello, I am Nancy Roberts from Washington.

ASSISTANT: Hello, how can I serve you?

USER: I got a invitation for Pasadena Strawberry festival from my mom, so can you please help me in booking a ticket to New York, EWR?

ASSISTANT: Sure. Let me know, from where you want to board?

USER: I would like to start my journey at DC-IAD international airport.

ASSISTANT: Can I know your travelling dates please?

USER: Sure, my travelling dates are from 02/25 to 02/27.

ASSISTANT: Do you need lay by in between your journey?

USER: I need a lay by in between journey.

ASSISTANT: Thank you for sharing your details. Please, wait for a moment.

USER: Sure.

ASSISTANT: Thank you for being patience, there is a flight available with Spirit airline, flight number 1016 with fare 100 and a lay by. Shall I proceed to book?

USER: Please proceed for booking.

ASSISTANT: Your booking has been successfully processed.

USER: Thanks for your excellent service in booking.

ASSISTANT: Thank you for availing us.