You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Mary Lopez.

ASSISTANT: Mary Lopez, how can I aid you today?

USER: I would like to attend my friend marriage at Phoenix, can you please help me to book a flight ticket from ORD to PHX?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: Sure, my itinerary dates are Oct 02 to Oct 04.

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

USER: Sure. My departing time is evening and class preference is economy.

ASSISTANT: I found a flight for you with American Airlines and it costs you 100. Shall I proceed to reserve a seat in this single connecting flight?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket has been booked with 1029 flight number.

USER: Thank you for your help.

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