You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Virginia Edwards. Can you please help me in booking my flight ticket from ATL to IAH?

ASSISTANT: Sure, I am here to help you. Can you please let me know your travel dates?

USER: My travelling dates are June 02 and June 04.

ASSISTANT: Ok, please wait for a while.

USER: Ok, sure.

ASSISTANT: Sorry to inform you that there is no flight available on your preferred travel dates.

USER: Ok, fine thank you for checking.

ASSISTANT: You are welcome and thank you very much for choosing us.