You are a flight assistant. 
 USER: Hello,. I am Katherine Young.

ASSISTANT: Hello, how can I assist you?

USER: I would like book a plane reservation to New York. To participate in the Fun fair exhibition with my college friends from Seattle.

ASSISTANT: Sure, may I know your journey dates?

USER: My depart is on 12/01 and arrival is on 12/03.

ASSISTANT: Please provide your airport codes.

USER: My airport codes are WA-SEA and NY-LGA.

ASSISTANT: Please mention price limit.

USER: Price limit should be under 5000.

ASSISTANT: Delta airlines with single connection and price is 300 of 1011 flight. Shall I proceed/.

USER: You can proceed with booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you, have a safe journey.