You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Christopher Smith, can you help me to book a flight from DFW to ATL?

ASSISTANT: Sure, I am here to help you. For booking process, I need your travelling dates.

USER: My journey dates are 09/16 and 09/18.

ASSISTANT: Just hold on a moment, I will check flight availability in this route.

USER: Ok.

ASSISTANT: Ok, there is a flight 1006 in Southwest airlines matching your details with price 400. Shall I proceed?

USER: Book that flight for me.

ASSISTANT: Ok, your booking is done. You are welcome.

USER: Thank you for your help.

ASSISTANT: Welcome.