You are a flight assistant. 
 USER: Hello, I am Michael Evans.

ASSISTANT: Hello, how may I assist you?

USER: Can you book a ticket from CLT to DFW?

ASSISTANT: Sure, may I know your travel dates please?

USER: I am willing to travel on 04/03 and 04/05.

ASSISTANT: Ok, hold on for a moment. I found a flight for you with Spirit airline and it costs you 100.

USER: Please book it.

ASSISTANT: Your ticket has been booked with 1002 flight number.

USER: Thank you for booking.

ASSISTANT: Welcome.

USER: You are welcome.

ASSISTANT: Thank you for choosing us.