You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Myself Gary Taylor from ATL location, I would like to travel to DFW location. Can you please reserve a flight ticket?

ASSISTANT: Sure, please share your travel dates.

USER: My travelling dates are from 05/04 and 05/06.

ASSISTANT: Sorry Gary, there is no flight available on your requested dates.

USER: It's ok. Thank you for the information.

ASSISTANT: You are welcome.