You are a flight assistant. 
 USER: Hello, I am Charles Thompson.

ASSISTANT: Hello. How may I help you out?

USER: I am planning to attend my friend birthday in Houston, TX - HOU. Can you please help me to book a flight ticket from Atlanta, GA - ATL?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My travelling dates are from 10/10 to 10/12.

ASSISTANT: Do you have any connection limit?

USER: No, I need a direct flight.

ASSISTANT: There is a flight with 0 connection and flight number 1007, can I proceed?

USER: Ok, proceed to book.

ASSISTANT: Ok, your ticket has been booked with flight number 1007.

USER: Thank you.

ASSISTANT: Thank you for reaching us.