You are a flight assistant. 
 USER: Hello, I am Stephanie Thompson.

ASSISTANT: Hello Thompson, how can I aid you today?

USER: I want to visit Philadelphia, PA-PHL to attend my sister's engagement, so can you please help me in booking a flight ticket from Phoenix, PHX?

ASSISTANT: Sure, I am happy to help you.

USER: Thank you.

ASSISTANT: May I know your travel dates please?

USER: My journey dates are from 09/26 to 09/28.

ASSISTANT: Ok, hold on for a moment. Let me check the best available flight for you.

USER: Sure.

ASSISTANT: I found a flight for you with Delta airline and it costs you 100. Shall I proceed?

USER: Please proceed for booking.

ASSISTANT: Your ticket has been booked with 1001 flight number.

USER: Thank you.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.