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

ASSISTANT: Hello, how may I serve you today?

USER: I want to book a flight ticket to New York to visit Statue of Liberty, please help me with a connecting flight.

ASSISTANT: Sure, I will help you with booking. Please share me your airport codes?

USER: I want to fly from PHL to JFK.

ASSISTANT: May I know your budget for flight ticket?

USER: My travelling dates are from 10/15 to 10/17. I need the ticket under price 1000.

ASSISTANT: Thank you for details, please wait for a while.

USER: Ok.

ASSISTANT: Thank you for details, I found a flight of airline UA, flight number is 1020 and fare is 200. Shall I proceed with booking?

USER: Please go with boking.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.