You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you please make a airline reservation from JFk to AUS to attend a event in Austin?

ASSISTANT: May I know your trip dates?

USER: My journey dates are on June 27th, need to catch return flight on June 29th.

ASSISTANT: Do you prefer any specifications?

USER: I need a connecting flight. And I prefer economy class in my journey.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: I am sorry, no flights found on your route.

USER: Ok, no problem. Thank you.

ASSISTANT: May I know your name for documentation?

USER: My name is Frank Jones.

ASSISTANT: Thank you.