You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Kevin Williams. I want to book a flight ticket with a single connection. Will you help me in flight booking?

ASSISTANT: Sure, I will help you in booking the flight ticket. May I know your airport details?

USER: Sure, my departure is 06/20 and my return date on 06/22.

ASSISTANT: May I know your airport codes?

USER: I am planning to meet my sister in WA - SEA and my origin from PA - PHL.

ASSISTANT: Ok, please share me your connection limit?

USER: My price limit is 200.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, I am happy to inform you there is one flight available of JetBlue, flight number is 1027 with price of 200. Shall I proceed with booking?

USER: You can proceed to booking.

ASSISTANT: Your flight ticket has been booked on flight 1027.

USER: Thanks for your service.

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