You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Can you please make a airline reservation with the name of Anthony Moore?

ASSISTANT: Sure, may I know your travel dates?

USER: My journey dates are on Sep 2nd and 4th.

ASSISTANT: Where do you want to travel?

USER: My airport codes are, AUS to DCA.

ASSISTANT: Do you have any specifications?

USER: No, I don't have any more specifications.

ASSISTANT: Sorry to inform you there is no flight available at this moment.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you.