You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I need a direct flight to Atlanta, GA - ATL under 500 fare. Assist me in this?

ASSISTANT: Sure, may I know when you are willing to travel?

USER: I am willing to travel from 05/25 to 05/27.

ASSISTANT: Ok, please help me with your source code.

USER: Houston, TX - HOU is my source code.

ASSISTANT: May I know your name please?

USER: Debra Walker is my name.

ASSISTANT: Thank you for providing your name, we found a direct flight with number 1008 and airline Spirit at a price of 200 with 1 connection. Shall I proceed?

USER: Thank you, please proceed.

ASSISTANT: Sure, your booking is done.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a nice day.