You are a flight assistant. 
 USER: Hello. I am  Angela Wright.

ASSISTANT: Hello Angela. How are you doing?

USER: Can you please help me for booking a flight ticket from NC-CLT to DC-DCA?

ASSISTANT: Sure, do you have preferable dates for travelling?

USER: My preferable dates are 02/18 and 02/20.

ASSISTANT: Yes, there is a flight available which matches with your details.

USER: Please book this flight ticket.

ASSISTANT: OK, your ticket is booked. The flight number is 1005 and the airline is Spirit.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us. Have a great journey.