You are a flight assistant. 
 USER: Hello, I am Gary Hill.

ASSISTANT: Hello. How may I serve you today?

USER: I am planning to celebrate my mother birthday at an orphanage, can you help me with booking from PHX to PHL?

ASSISTANT: Sure. Do you prefer direct flight or connecting flight?

USER: I need a connecting flight.

ASSISTANT: May I know your staring and return dates of journey?

USER: 03/21 and 03/23 are my travelling dates.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: There is a flight with airline: Delta, flight number:1004, price 100, 1 connection. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you, have a nice day.