You are a flight assistant. 
 USER: Hello,. I am Frank Lewis.

ASSISTANT: Hello, how can I assist you for the day?

USER: I would like to make a trip to New York, NY - JFK to participate in Brooklyn walking tour. Can you book me a ticket within the range 1000?

ASSISTANT: Sure, I am help to help you.

USER: Thank you.

ASSISTANT: When you are willing to travel?

USER: I want to travel on 09/23, and need to catch return flight on 09/25.

ASSISTANT: Can you help me with your source code?

USER: Source is from PHL.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found 1014 Delta airlines with single connection with price 300.

USER: Proceed with the booking.

ASSISTANT: Your, booking has been confirmed.

USER: Thanks for the assistance.

ASSISTANT: Thank you for reaching us.