You are a flight assistant. 
 USER: Hi. I am Benjamin Smith.

ASSISTANT: Hello, how can I aid you today?

USER: I want to book a flight ticket on 02/29 and return on 03/02, so can you please help me with booking please?

ASSISTANT: Sure. Do you need halt in between your journey?

USER: I need a connecting flight.

ASSISTANT: May I know your source and destination?

USER: Yes, my airport codes are Denver, CO-DEN and PA-PHL.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: We found a Delta airline, flight number: 1000, price: 100 with one connection.

USER: Please proceed with booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you, have a good day.