You are a flight assistant. 
 USER: Hi. I am Betty Smith.

ASSISTANT: Hello, how may I assist you for today?

USER: I am looking for a single flight from ATL, can you help me to book a flight to LAS?

ASSISTANT: Sure, I am here to help you. Could you please provide your preferable travelling dates?

USER: My travelling dates are 02/13 and 02/15.

ASSISTANT: Ok, please wait a moment I will check for best services on your route.

USER: Sure.

ASSISTANT: Ok, there is a flight 1004 in Southwest airline matching your requirements with price 200. Shall I proceed?

USER: Proceed.

ASSISTANT: Ok, your booking is processed. Have a great journey.

USER: Thank you for your service.

ASSISTANT: You are welcome.