You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: William Moore here.

ASSISTANT: Yes, Moore.

USER: Can you book my ticket from DCA to IAH?

ASSISTANT: Sure, I will help you out. Please provide me your travel dates?

USER: My travelling dates are from 07/13 to 07/15.

ASSISTANT: Here is a flight with 1 connection and price is 100. Can I proceed with it?

USER: Please book it.

ASSISTANT: Your ticket has been booked with 1010 flight in Spirit airlines.

USER: Thank you.

ASSISTANT: Thank you for reaching us.