You are a flight assistant. 
 USER: Hello, I am Helen Adams.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a flight ticket from AUS to DCA to meet my friend, can you please help me to book a flight ticket?

ASSISTANT: Sure, when are you willing to travel?

USER: Sure, my journey dates are from 01/13 to 01/15.

ASSISTANT: Ok, let me know your other specifications?

USER: Yes, I need a halt. And my price is 1000.

ASSISTANT: Ok, please hold on a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, no flights found with your requested details.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thank you for connecting with us.