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

ASSISTANT: Hello. Lewis, how can I aid you today?

USER: I want to travel from ORD to PHX. Can you book a flight ticket for me?

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

USER: I want to fly in the flight in the month of June on 21 and 23.

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

USER: Ok, take your own time.

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

USER: Proceed to booking.

ASSISTANT: Your ticket has been booked with 1012 flight number.

USER: Thank you for your help.

ASSISTANT: Welcome, thank you for consulting us. Have a great day.