You are a flight assistant. 
 USER: Hello,. I am Justin King.

ASSISTANT: Hello, how can I help you today?

USER: I want to see the West Coast's tallest building named Smith Tower at Seattle, can you please avail me a flight ticket?

ASSISTANT: Sure, I will help you with booking.

USER: Thank you.

ASSISTANT: Please share me your airport codes?

USER:  I need to leave from my nearest airport ORD to reach SEA.

ASSISTANT: May I know your budget for flight ticket?

USER: Budget for flight ticket is 500.

ASSISTANT: Do you need any connection in between your flight journey?

USER: Yes, I need a connection.

ASSISTANT: Please share me your planned journey dates?

USER: I want to travel on 02/27, and need to catch return flight on 02/29.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, I found a connecting flight 1001 of airline Delta and fare is 300. Shall I proceed with booking?

USER: Proceed with the booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thanks for the service.

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