You are a flight assistant. 
 USER: Hi. I am Patricia Thompson.

ASSISTANT: Hello, how may I help you now?

USER: I would like to visit Redwood Regional Park at Oakland, CA - OAK. Can you please avail me a flight ticket from Washington, DC - IAD?

ASSISTANT: Sure, I will help you to book a flight.

USER: Thank you.

ASSISTANT: Please share me your planned journey dates?

USER: My trip dates are 10/15 - 10/17.

ASSISTANT: Do you need any halt in between your journey?

USER: I need a single connection.

ASSISTANT: May I know your budget for flight ticket?

USER: I can afford up to 500 only.

ASSISTANT: Please wait for a moment, while I search for the flight.

USER: Sure, I will wait.

ASSISTANT: Thank you for waiting, I found a flight of airline Frontier, flight number 1003 and fare is 200. Shall I proceed with booking?

USER: Please go ahead with the booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a nice journey.