You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How may I assist you?

USER: Please book me a ticket from AUS to DCA to meet my friends?

ASSISTANT: Sure, do you need any halt in between your journey?

USER: Yes, I need a halt.

ASSISTANT: May I know your name please?

USER: Myself Amanda Walker.

ASSISTANT: Let me know your travel dates please?

USER: My travel dates are from 07/09 to 07/11.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Thanks for being patience, there were no flights found with your given details.

USER: Ok, no problem. Thank you.

ASSISTANT: Thanks for choosing us.