You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: I want to attend my uncle's house warming ceremony at New York, so please book me a flight ticket on the name Jeffrey Campbell.

ASSISTANT: Sure, May I know the travel dates?

USER: My journey dates will be 02/13 and 02/15.

ASSISTANT: Please help me with your journey codes.

USER: I want to fly from AUS to JFK.

ASSISTANT: May I know your name?

USER: Jeffrey Campbell is my name.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: No issues, thank you.

ASSISTANT: Thank you for opting us.